Political campaign mail targeting in the United States and Canada with the property political lean estimate

Photo of Alex Wilkinson
Alex Wilkinson
CEO of Houski
2026-05-31

Federal, state, provincial, and municipal campaigns in the United States and Canada spend a meaningful slice of their budget on direct mail. The math is the same as any other mail program. Cut the national list down to the addresses that match the message before the printer presses the button, and the cost-per-conversation drops sharply.

The Houski property API ships an estimate_political_lean column on every property in both countries. In Canada it is derived from public federal election results at the polling-division level. In the United States it is derived from county-level results of the presidential election. In both cases the value is spread to nearby properties by geographic proximity and runs from 0 (strongly left-leaning) through 5 (centre or split) to 10 (strongly right-leaning).

This post walks through the three campaign shapes that most often pull this column. Turning out the base. Persuading the centre. Prospecting in friendly territory.

What the column represents

In Canada, every polling division reports how its residents actually voted in the last federal general election. Houski groups the parties into left, centre, and right ideological buckets, computes a weighted lean for each division, and scales the result into a 0 to 10 number. In the United States the input is the county-level return from the last presidential election, with the Republican and Libertarian vote as the right bucket and the Democratic and Green vote as the left, run through the same formula. The number is then attached to every property in the surrounding area.

A few things this column is not.

It is not a prediction of how any individual voter will mark their ballot. It is an estimate of the area around the property, not the household inside it.

It is not a survey or panel result. It is built from real cast ballots aggregated to the polling division or the county.

It is not partisan branding. It is a single left-to-right axis, with parties grouped into ideological buckets rather than the column being named for any one party.

It is not the same resolution in both countries. A Canadian polling division is a few hundred voters. An American county can be a few million, so in the United States the estimate separates counties, and rural areas from urban ones, but not neighbourhoods inside a single county. A query that asks for a strongly left-leaning area inside a large suburban county can come back empty, because the whole county carries one value.

For the full formula and the bucket definitions, see the field reference.

Use case one: turn out the base

The simplest political mail program is also the most common. You have a candidate or a ballot question, and you want to make sure your most reliable supporters know to vote.

In a riding or a district where your party leans left, query for properties in the most strongly left-leaning postal areas. Print a reminder card with the date, the address of the local polling place, and a short note about advance voting. Mail it the weekend before election day.

The same query, mirrored to the right, works for a centre-right campaign.

API request
TypeScript code
const houski_data = async (): Promise<PropertiesResponse> => {

    // You must copy the PropertiesResponse type declarations from the 
    // Houski API documentation to strongly type the response

    const url = new URL('http://127.0.0.1:8080/properties');
    url.searchParams.set('api_key', 'YOUR_API_KEY');
    url.searchParams.set('country_abbreviation', 'ca');
    url.searchParams.set('estimate_political_lean_lte', '2');
    url.searchParams.set('property_type_in', 'House,Townhouse,Apartment');
    url.searchParams.set('province_abbreviation', 'on');
    url.searchParams.set('results_per_page', '100');
    url.searchParams.set('select', 'address,postal_code,latitude,longitude,city,province,estimate_political_lean,property_type');

    const response = await fetch(url);
    const data = await response.json();

    return data;
}

(async () => {
let data: PropertiesResponse = await houski_data();

// Log the response
console.log(data);
})();
API response
JSON
{
  "cache_hit": false,
  "cost_cents": 7.380001068115234,
  "data": [
    {
      "address": "36 Heronry Lake Road S",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.1441650390625,
      "longitude": -93.91831970214844,
      "postal_code": "P0X1K0",
      "property_id": "13ec5420a619ba89",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "4 10 Sabaskong Bay Island",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.152565002441406,
      "longitude": -93.93496704101562,
      "postal_code": "P0X1K0",
      "property_id": "2c637e8779d48d1",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "70 Quarry Park Drive",
      "city": "Cochrane, Unorganized, North Part",
      "estimate_political_lean": 2,
      "latitude": 51.2199592590332,
      "longitude": -85.27517700195312,
      "postal_code": "N2B0B2",
      "property_id": "2f399ea5607e47e",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1801 Highway 71",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.16117858886719,
      "longitude": -93.93083190917967,
      "postal_code": "P0X1K0",
      "property_id": "333746c106e2880f",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "S955 Shoal Lake",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 1,
      "latitude": 49.59803771972656,
      "longitude": -95.119384765625,
      "postal_code": "P0X1E0",
      "property_id": "3421ef42c5b42947",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1831 Highway 71",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.1650390625,
      "longitude": -93.9328384399414,
      "postal_code": "P0X1K0",
      "property_id": "3b08d7d2a609d3ef",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1629 Highway 71",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.13766860961914,
      "longitude": -93.92617797851562,
      "postal_code": "P0X1K0",
      "property_id": "428586fff9666ca9",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "61 Kakagi Lake Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 0,
      "latitude": 49.19929885864258,
      "longitude": -93.9400634765625,
      "postal_code": "P0X1K0",
      "property_id": "448d8286bcff9fde",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1128 S Morrison Lake Road N",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 2,
      "latitude": 53.178733825683594,
      "longitude": -89.72704315185547,
      "postal_code": "P0E1G0",
      "property_id": "506825c088c913b4",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "5 Tinkers Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.12961196899414,
      "longitude": -93.93042755126952,
      "postal_code": "P0X1K0",
      "property_id": "51ba315636834f17",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "8 Shady Roost Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.13854217529297,
      "longitude": -93.94485473632812,
      "postal_code": "P0X1K0",
      "property_id": "55f46d406f39e297",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1558 Highway 71",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.13554382324219,
      "longitude": -93.92675018310548,
      "postal_code": "P0W1E0",
      "property_id": "5da5423dc10278b1",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1 Rowan Lake",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 2,
      "latitude": 49.311302185058594,
      "longitude": -93.56424713134766,
      "postal_code": "P0X1K0",
      "property_id": "5e6f6d748deda6cb",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "21 Red Pine Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.21134567260742,
      "longitude": -93.95777893066406,
      "postal_code": "P0X1K0",
      "property_id": "624c9c53d2500158",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "60 Marsh Bay Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.132545471191406,
      "longitude": -93.93939971923828,
      "postal_code": "P0X1K0",
      "property_id": "67e214be0956f0d8",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "K8334 Shoal Lake Road Electron Lake",
      "city": "Shoal Lake 39A",
      "estimate_political_lean": 2,
      "latitude": 49.64360427856445,
      "longitude": -95.07903289794922,
      "postal_code": "P0X1E0",
      "property_id": "68e306d821543bdd",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1841 Myrtle Rapids Winnipeg River",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 2,
      "latitude": 49.886016845703125,
      "longitude": -94.59666442871094,
      "postal_code": "P0X1C0",
      "property_id": "6dc5b5452b4a7df4",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "1481 Highway 71",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.127559661865234,
      "longitude": -93.93087005615234,
      "postal_code": "P0X1K0",
      "property_id": "731b6635a175ae6f",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "179 Percy Street",
      "city": "Ottawa",
      "estimate_political_lean": 2,
      "latitude": 45.40951156616211,
      "longitude": -75.7011489868164,
      "property_id": "7ab6f1a9068756e0",
      "property_type": "Apartment",
      "province": "Ontario"
    },
    {
      "address": "12 Heronry Lake Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.145938873291016,
      "longitude": -93.92156982421876,
      "postal_code": "P0X1K0",
      "property_id": "7b009d1347612139",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "Kakagi Crow Lake Parcel 34022",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 1,
      "latitude": 49.22859191894531,
      "longitude": -93.829345703125,
      "postal_code": "P0X1K0",
      "property_id": "7b6c394d07fc4cf8",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "14027 Kakagi Lake",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.25345993041992,
      "longitude": -93.97928619384766,
      "postal_code": "P0X1K0",
      "property_id": "7f37d8bac5d6812d",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "2804 Grandpa Tolens Road Crow Lake",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.2265625,
      "longitude": -93.98632049560548,
      "postal_code": "P0X1K0",
      "property_id": "825219c7847710f6",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "75 Black Bear Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 0,
      "latitude": 49.198768615722656,
      "longitude": -93.94587707519533,
      "postal_code": "P0X1E0",
      "property_id": "8306ed42931a68db",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "100 Acres Parcel 7576",
      "city": "Sandy Lake 88",
      "estimate_political_lean": 2,
      "latitude": 53.07575225830078,
      "longitude": -93.29108428955078,
      "postal_code": "P0V1V0",
      "property_id": "83ed8fb793d5a0bd",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "4 Heronry Lake Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.14638137817383,
      "longitude": -93.9222412109375,
      "postal_code": "P0X1K0",
      "property_id": "8c0c50566d8e699d",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "10 Black Bear Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 0,
      "latitude": 49.198997497558594,
      "longitude": -93.9483642578125,
      "postal_code": "P0X1K0",
      "property_id": "96c33f0c2664931f",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "Srl Eb649 Kakagi Lake",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 2,
      "latitude": 49.19660568237305,
      "longitude": -93.7162857055664,
      "postal_code": "P0X1K0",
      "property_id": "9c0ed44638d9aba",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "21 Tinkers Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.13071823120117,
      "longitude": -93.9322280883789,
      "postal_code": "P0X1K0",
      "property_id": "a0c729e991e0fc98",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "4449 71 Highway",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.15165710449219,
      "longitude": -93.92450714111328,
      "postal_code": "P0W1A0",
      "property_id": "a2d57f7a44c7590b",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "90 Sabaskong Bay Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.14786911010742,
      "longitude": -93.93377685546876,
      "postal_code": "P0X1K0",
      "property_id": "be71a907d3ba3d17",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "Lot 4 Crow Lake",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 0,
      "latitude": 49.200679779052734,
      "longitude": -93.95178985595705,
      "postal_code": "P0X1K0",
      "property_id": "c04478dfe299ca38",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "71 Kakagi Lake Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 0,
      "latitude": 49.199188232421875,
      "longitude": -93.9394989013672,
      "postal_code": "P0X1K0",
      "property_id": "c2de7e9ef5bda9f1",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "2186 Highway 71",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 0,
      "latitude": 49.18919372558594,
      "longitude": -93.9375991821289,
      "postal_code": "P0X1K0",
      "property_id": "c2deca41cc32db63",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "164 Sabaskong Bay Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 2,
      "latitude": 49.13811874389648,
      "longitude": -93.9444580078125,
      "postal_code": "P0X1K0",
      "property_id": "c7b19af2216ea41a",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "Lot 4 Tobys Island",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 1,
      "latitude": 49.61006164550781,
      "longitude": -95.09921264648438,
      "postal_code": "P0X1C0",
      "property_id": "da5db06932e54d06",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "80 Sabaskong Bay Road",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 1,
      "latitude": 49.147850036621094,
      "longitude": -93.9356460571289,
      "postal_code": "P0X1K0",
      "property_id": "daea99ecbdc8c45a",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "Lot 1 M678 Myrtle Rapids",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 2,
      "latitude": 49.88068389892578,
      "longitude": -94.59246826171876,
      "postal_code": "P0X1C0",
      "property_id": "dbed50dab5a49a89",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "177 Percy Street",
      "city": "Ottawa",
      "estimate_political_lean": 2,
      "latitude": 45.40952682495117,
      "longitude": -75.70134735107422,
      "postal_code": "K1R6E6",
      "property_id": "e684986a7dc16958",
      "property_type": "Apartment",
      "province": "Ontario"
    },
    {
      "address": "Jo153 Shoal Lake Island",
      "city": "Kenora, Unorganized",
      "estimate_political_lean": 2,
      "latitude": 49.581729888916016,
      "longitude": -95.05686950683594,
      "postal_code": "P0X1E0",
      "property_id": "e7b938456d35a633",
      "property_type": "House",
      "province": "Ontario"
    },
    {
      "address": "2384 Highway 71",
      "city": "Sioux Narrows-Nestor Falls",
      "estimate_political_lean": 0,
      "latitude": 49.200721740722656,
      "longitude": -93.95221710205078,
      "postal_code": "P0X1K0",
      "property_id": "f9c94e473b1ea375",
      "property_type": "House",
      "province": "Ontario"
    }
  ],
  "error": "",
  "pagination": {
    "current_page": 1,
    "has_next_page": false,
    "has_previous_page": false,
    "page_total": 1
  },
  "price_quote": false,
  "result_total": 41,
  "time_ms": 151,
  "ui_info": {
    "country": "Canada",
    "country_abbreviation": "CA",
    "country_abbreviation_id": "9ace2b6431b7f1be",
    "country_abbreviation_link": "ca",
    "country_slug": "canada",
    "province": "Ontario",
    "province_abbreviation": "ON",
    "province_abbreviation_id": "146699ee774499d3",
    "province_abbreviation_link": "ca/on",
    "province_slug": "ontario"
  }
}

Here is that mirror image for a Texas campaign turning out a right-leaning base. The state goes in the same province_abbreviation parameter and the province field in the select comes back as the state name:

API request
TypeScript code
const houski_data = async (): Promise<PropertiesResponse> => {

    // You must copy the PropertiesResponse type declarations from the 
    // Houski API documentation to strongly type the response

    const url = new URL('http://127.0.0.1:8080/properties');
    url.searchParams.set('api_key', 'YOUR_API_KEY');
    url.searchParams.set('country_abbreviation', 'us');
    url.searchParams.set('estimate_political_lean_gte', '8');
    url.searchParams.set('property_type_in', 'House,Townhouse,Apartment');
    url.searchParams.set('province_abbreviation', 'tx');
    url.searchParams.set('results_per_page', '100');
    url.searchParams.set('select', 'address,postal_code,latitude,longitude,city,province,estimate_political_lean,property_type');

    const response = await fetch(url);
    const data = await response.json();

    return data;
}

(async () => {
let data: PropertiesResponse = await houski_data();

// Log the response
console.log(data);
})();
API response
JSON
{
  "cache_hit": false,
  "cost_cents": 18.000001907348633,
  "data": [
    {
      "address": "1124 Coffee Drive",
      "city": "Borger",
      "estimate_political_lean": 9,
      "latitude": 35.68320083618164,
      "longitude": -101.40593719482422,
      "postal_code": "79007",
      "property_id": "1000051492c1d415",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "213 Donna Drive",
      "city": "Anahuac",
      "estimate_political_lean": 8,
      "latitude": 29.76406478881836,
      "longitude": -94.67427825927734,
      "postal_code": "77514",
      "property_id": "1000138ed81d6358",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "402 Alamo",
      "city": "El Campo",
      "estimate_political_lean": 8,
      "latitude": 29.191911697387695,
      "longitude": -96.26782989501952,
      "property_id": "10001c107924eb76",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "15860 Treasure Cove",
      "city": "Bullard",
      "estimate_political_lean": 8,
      "latitude": 32.138362884521484,
      "longitude": -95.43586730957033,
      "postal_code": "75757",
      "property_id": "100025379a32e1ed",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "22869 I-20",
      "city": "Myrtle Springs",
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      "estimate_political_lean": 8,
      "latitude": 33.53593826293945,
      "longitude": -96.13899993896484,
      "postal_code": "75418",
      "property_id": "100274e9563dfd33",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "100 Rio Valle View E",
      "city": "Kerrville",
      "estimate_political_lean": 8,
      "latitude": 30.03788948059082,
      "longitude": -99.1430435180664,
      "property_id": "10029a5f62608b7a",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "220 Rocky Road",
      "city": "Marble Falls",
      "estimate_political_lean": 8,
      "latitude": 30.53901100158691,
      "longitude": -98.28429412841795,
      "postal_code": "78654",
      "property_id": "1002a5eebd2efd45",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "616 Williams",
      "city": "Gonzales",
      "estimate_political_lean": 8,
      "latitude": 29.510822296142575,
      "longitude": -97.4536590576172,
      "postal_code": "78629",
      "property_id": "1002acd59b03197a",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "4060 Road 5876",
      "city": "Cleveland",
      "estimate_political_lean": 8,
      "latitude": 30.212331771850582,
      "longitude": -95.0296630859375,
      "postal_code": "77327",
      "property_id": "1002b3470851b9a9",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "1206 Churchill Drive",
      "city": "Granite Shoals",
      "estimate_political_lean": 8,
      "latitude": 30.601564407348633,
      "longitude": -98.35391235351562,
      "postal_code": "78654",
      "property_id": "1002b8a5fb8b70d1",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "821 Prairie Street",
      "city": "Columbus",
      "estimate_political_lean": 8,
      "latitude": 29.70895767211914,
      "longitude": -96.54415893554688,
      "postal_code": "78934",
      "property_id": "1002bdc938e27b06",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "837 N Avenue B",
      "city": "Springtown",
      "estimate_political_lean": 8,
      "latitude": 32.9775390625,
      "longitude": -97.68447875976562,
      "postal_code": "76082",
      "property_id": "1002c2909ccb42da",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "100 Walnut Street",
      "city": "Wichita Falls",
      "estimate_political_lean": 8,
      "latitude": 33.904876708984375,
      "longitude": -98.48532104492188,
      "postal_code": "76301",
      "property_id": "1002c96dda1bbebe",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "201 S 9 Street",
      "city": "Mabank",
      "estimate_political_lean": 8,
      "latitude": 32.36670684814453,
      "longitude": -96.11321258544922,
      "postal_code": "75147",
      "property_id": "1002cfae6c70f33a",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "1108 Johnson",
      "city": "Palacios",
      "estimate_political_lean": 8,
      "latitude": 28.70954704284668,
      "longitude": -96.22612762451172,
      "postal_code": "77465",
      "property_id": "1002e774112108c5",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "110 Meadowlark Lane",
      "city": "Gun Barrel City",
      "estimate_political_lean": 8,
      "latitude": 32.309452056884766,
      "longitude": -96.13153076171876,
      "postal_code": "75156",
      "property_id": "1002e9173538c9b3",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "4501 Barbados",
      "city": "Wichita Falls",
      "estimate_political_lean": 8,
      "latitude": 33.86347579956055,
      "longitude": -98.5128173828125,
      "postal_code": "76308",
      "property_id": "1002ed2ff9880a96",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "1312 Cobb",
      "city": "Edna",
      "estimate_political_lean": 9,
      "latitude": 28.987613677978516,
      "longitude": -96.65909576416016,
      "property_id": "1002ee7a5d948793",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "3690 Briar Creek Drive",
      "city": "Beaumont",
      "estimate_political_lean": 8,
      "latitude": 30.11492347717285,
      "longitude": -94.1636734008789,
      "postal_code": "77706",
      "property_id": "1002f90ec0498978",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "9644 Lakeland Loop",
      "city": "Quinlan",
      "estimate_political_lean": 8,
      "latitude": 32.883113861083984,
      "longitude": -96.05789184570312,
      "postal_code": "75474",
      "property_id": "10030200bc934cdf",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "816 S Ridgeway Drive",
      "city": "Cleburne",
      "estimate_political_lean": 8,
      "latitude": 32.33245849609375,
      "longitude": -97.40380859375,
      "postal_code": "76033",
      "property_id": "100307773104801f",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "108 Rippetoe Street",
      "city": "Lipan",
      "estimate_political_lean": 8,
      "latitude": 32.519039154052734,
      "longitude": -98.04537200927734,
      "postal_code": "76462",
      "property_id": "10030d883aba7de9",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "124 SE Cr 3147",
      "city": "Corsicana",
      "estimate_political_lean": 8,
      "latitude": 32.02275466918945,
      "longitude": -96.24927520751952,
      "postal_code": "75109",
      "property_id": "10031512153a2171",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "309 N Clay",
      "city": "Henrietta",
      "estimate_political_lean": 9,
      "latitude": 33.81782913208008,
      "longitude": -98.19461822509766,
      "postal_code": "76365",
      "property_id": "10031f82f789b54b",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "302 N Elm Street",
      "city": "Weatherford",
      "estimate_political_lean": 8,
      "latitude": 32.76223373413086,
      "longitude": -97.7951889038086,
      "postal_code": "76086",
      "property_id": "100322d985648b21",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "509 Elm Street",
      "city": "Wichita Falls",
      "estimate_political_lean": 8,
      "latitude": 33.90529251098633,
      "longitude": -98.47952270507812,
      "postal_code": "76301",
      "property_id": "10034cb9c3a4e07a",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "9419 Fm 957",
      "city": "Hallettsville",
      "estimate_political_lean": 9,
      "latitude": 29.558940887451172,
      "longitude": -96.9818115234375,
      "postal_code": "77964",
      "property_id": "100358180cfb591e",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "2125 Albert Broadfoot Street",
      "city": "Bonham",
      "estimate_political_lean": 8,
      "latitude": 33.59953308105469,
      "longitude": -96.18629455566406,
      "postal_code": "75418",
      "property_id": "1003c421797039e5",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "1008 Martin Luther King Drive",
      "city": "Livingston",
      "estimate_political_lean": 8,
      "latitude": 30.716909408569336,
      "longitude": -94.94527435302734,
      "postal_code": "77351",
      "property_id": "1003e6af4de3dbd8",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "803 Donna Drive",
      "city": "Hallettsville",
      "estimate_political_lean": 9,
      "latitude": 29.442821502685547,
      "longitude": -96.95658111572266,
      "property_id": "1003eb46f39927eb",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "1210 W 5 Street",
      "city": "Breckenridge",
      "estimate_political_lean": 9,
      "latitude": 32.76469421386719,
      "longitude": -98.91667938232422,
      "postal_code": "76424",
      "property_id": "1003fa5b741f5bb4",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "303 W Commerce Street",
      "city": "Brady",
      "estimate_political_lean": 9,
      "latitude": 31.134557723999023,
      "longitude": -99.33706665039062,
      "postal_code": "76825",
      "property_id": "1004004ebdfab75e",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "640 E United States Highway 90",
      "city": "Schulenburg",
      "estimate_political_lean": 8,
      "latitude": 29.681785583496097,
      "longitude": -96.89061737060548,
      "postal_code": "78956",
      "property_id": "100405adc71e68db",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "615 Redwood Drive",
      "city": "Greenville",
      "estimate_political_lean": 8,
      "latitude": 33.09313201904297,
      "longitude": -96.08123779296876,
      "postal_code": "75402",
      "property_id": "1004145db9a69c8a",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "101 July Court",
      "city": "Lufkin",
      "estimate_political_lean": 8,
      "latitude": 31.324129104614254,
      "longitude": -94.76559448242188,
      "postal_code": "75904",
      "property_id": "1004224efe49cefc",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "2301 6 Street",
      "city": "Bay City",
      "estimate_political_lean": 8,
      "latitude": 28.98232078552246,
      "longitude": -95.9625015258789,
      "postal_code": "77414",
      "property_id": "100437721644c0ce",
      "property_type": "House",
      "province": "Texas"
    },
    {
      "address": "2537 3 Street",
      "city": "Rock Island",
      "estimate_political_lean": 8,
      "latitude": 29.53245735168457,
      "longitude": -96.5739288330078,
      "postal_code": "77470",
      "property_id": "10045152e0a6b977",
      "property_type": "House",
      "province": "Texas"
    }
  ],
  "error": "",
  "pagination": {
    "current_page": 1,
    "has_next_page": true,
    "has_previous_page": false,
    "page_total": 14143
  },
  "price_quote": false,
  "result_total": 1414264,
  "time_ms": 163,
  "ui_info": {
    "country": "United States",
    "country_abbreviation": "US",
    "country_abbreviation_id": "c148472ce4bd39d",
    "country_abbreviation_link": "us",
    "country_slug": "united_states",
    "province": "Texas",
    "province_abbreviation": "TX",
    "province_abbreviation_id": "ccdfc6d473cdc27a",
    "province_abbreviation_link": "us/tx",
    "province_slug": "texas"
  }
}

The fields you would actually print are the address (for the envelope), the postal code or ZIP code (for postal-walk or carrier-route sorting), and optionally city and property type (to localise the message).

Use case two: persuade the centre

The harder, more expensive shape of mail is persuasion in swing neighbourhoods. The estimate sits between 4 and 6 here. These are areas that are competitive at the polling-division or county level, often because they are genuinely split rather than uniformly moderate.

The classic persuasion pattern is to combine the political lean filter with a demographic or property filter that matches the policy message. If your candidate is running on rental affordability, query for swing-area apartments and townhouses where the area's median income sits in the typical renter band.

API request
TypeScript code
const houski_data = async (): Promise<PropertiesResponse> => {

    // You must copy the PropertiesResponse type declarations from the 
    // Houski API documentation to strongly type the response

    const url = new URL('http://127.0.0.1:8080/properties');
    url.searchParams.set('api_key', 'YOUR_API_KEY');
    url.searchParams.set('country_abbreviation', 'ca');
    url.searchParams.set('demographic_income_median_pre_tax_lt', '65000');
    url.searchParams.set('estimate_political_lean_gte', '4');
    url.searchParams.set('estimate_political_lean_lte', '6');
    url.searchParams.set('property_type_in', 'Apartment,Townhouse');
    url.searchParams.set('province_abbreviation', 'bc');
    url.searchParams.set('results_per_page', '100');
    url.searchParams.set('select', 'address,postal_code,latitude,longitude,city,province,estimate_political_lean,property_type,demographic_income_median_pre_tax');

    const response = await fetch(url);
    const data = await response.json();

    return data;
}

(async () => {
let data: PropertiesResponse = await houski_data();

// Log the response
console.log(data);
})();
API response
JSON
{
  "cache_hit": false,
  "cost_cents": 28.0,
  "data": [
    {
      "address": "120 4175 Norland Avenue",
      "city": "Burnaby",
      "demographic_income_median_pre_tax": 34220,
      "estimate_political_lean": 6,
      "latitude": 49.247169494628906,
      "longitude": -122.97533416748048,
      "postal_code": "V5G3S7",
      "property_id": "10026c307444ed57",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "907 8033 Saba Road",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 59284,
      "estimate_political_lean": 6,
      "latitude": 49.168914794921875,
      "longitude": -123.13604736328124,
      "postal_code": "V6Y4M8",
      "property_id": "1004c26e2a6c3db7",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "308 13316 Old Yale Road",
      "city": "Surrey",
      "demographic_income_median_pre_tax": 39040,
      "estimate_political_lean": 6,
      "latitude": 49.18611526489258,
      "longitude": -122.85211944580078,
      "postal_code": "V3T5J5",
      "property_id": "10076dc5d688f8ba",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1564 George Street",
      "city": "White Rock",
      "demographic_income_median_pre_tax": 63622,
      "estimate_political_lean": 6,
      "latitude": 49.030784606933594,
      "longitude": -122.79953002929688,
      "postal_code": "V4B4A5",
      "property_id": "1009245368b76f39",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1603 8988 Patterson Road",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.190093994140625,
      "longitude": -123.126220703125,
      "postal_code": "V6X0R2",
      "property_id": "100f801fdab2333b",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "213 6833 Pearson Way",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 62176,
      "estimate_political_lean": 6,
      "latitude": 49.17656707763672,
      "longitude": -123.14715576171876,
      "postal_code": "V7C0E8",
      "property_id": "100fc88ffb77f4dd",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1502 8199 Capstan Way",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.189640045166016,
      "longitude": -123.13297271728516,
      "postal_code": "V6X0V1",
      "property_id": "10105f4b2afeb7b2",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "12 8677 Capstan Way",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.18789291381836,
      "longitude": -123.1285400390625,
      "postal_code": "V6X0N6",
      "property_id": "10114722c473eaa7",
      "property_type": "Townhouse",
      "province": "British Columbia"
    },
    {
      "address": "103 1533 Best Street",
      "city": "White Rock",
      "demographic_income_median_pre_tax": 63622,
      "estimate_political_lean": 6,
      "latitude": 49.02994537353515,
      "longitude": -122.79615783691406,
      "postal_code": "V4B4E9",
      "property_id": "1011f4a666617f6c",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "105 3400 Centennial Drive",
      "city": "Vernon",
      "demographic_income_median_pre_tax": 52536,
      "estimate_political_lean": 6,
      "latitude": 50.266815185546875,
      "longitude": -119.2816390991211,
      "postal_code": "V1T1K3",
      "property_id": "1011fc8943b9b855",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1611 3300 Ketcheson Road",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.1889762878418,
      "longitude": -123.1264190673828,
      "postal_code": "V6X0S5",
      "property_id": "1013d687601bab30",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "306 3233 Ketcheson Road",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.18989181518555,
      "longitude": -123.12574768066406,
      "postal_code": "V6X0R3",
      "property_id": "10140ad28c8e65a5",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "106 22222 119 Avenue",
      "city": "Maple Ridge",
      "demographic_income_median_pre_tax": 55910,
      "estimate_political_lean": 6,
      "latitude": 49.21844100952149,
      "longitude": -122.60675048828124,
      "postal_code": "V2X2Y9",
      "property_id": "10144de03f89c84",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "304 15321 Russell Avenue",
      "city": "White Rock",
      "demographic_income_median_pre_tax": 63622,
      "estimate_political_lean": 6,
      "latitude": 49.02936553955078,
      "longitude": -122.79823303222656,
      "postal_code": "V4B2P9",
      "property_id": "1017f4afff72fc28",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "550 Cambie Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 31570,
      "estimate_political_lean": 4,
      "latitude": 49.281341552734375,
      "longitude": -123.110595703125,
      "postal_code": "V6B2N7",
      "property_id": "10181849c369c353",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "110 5477 Wharf Avenue",
      "city": "Sechelt",
      "demographic_income_median_pre_tax": 62658,
      "estimate_political_lean": 4,
      "latitude": 49.47101211547851,
      "longitude": -123.7549819946289,
      "postal_code": "V7Z0H5",
      "property_id": "1018fff4ae71f19a",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "509 3400 Centennial Drive",
      "city": "Vernon",
      "demographic_income_median_pre_tax": 52536,
      "estimate_political_lean": 6,
      "latitude": 50.266815185546875,
      "longitude": -119.2816390991211,
      "postal_code": "V1T1K3",
      "property_id": "10194e1b0c5524e0",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "303 885 Fairview Road",
      "city": "Penticton",
      "demographic_income_median_pre_tax": 49644,
      "estimate_political_lean": 6,
      "latitude": 49.48960876464844,
      "longitude": -119.5904312133789,
      "postal_code": "V2A5Y7",
      "property_id": "101e601caa960a93",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1503 45 Clute Street",
      "city": "New Westminster",
      "demographic_income_median_pre_tax": 38317,
      "estimate_political_lean": 4,
      "latitude": 49.222713470458984,
      "longitude": -122.91531372070312,
      "postal_code": "V3L1Z7",
      "property_id": "101f37c24b3e0c48",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "409 7418 Paulson Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 50608,
      "estimate_political_lean": 6,
      "latitude": 49.217830657958984,
      "longitude": -123.1183090209961,
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      "address": "201 781 2 Street SE",
      "city": "Salmon Arm",
      "demographic_income_median_pre_tax": 46270,
      "estimate_political_lean": 6,
      "latitude": 50.694305419921875,
      "longitude": -119.2831573486328,
      "postal_code": "V1E0B9",
      "property_id": "106c3715b32a8527",
      "property_type": "Townhouse",
      "province": "British Columbia"
    },
    {
      "address": "607 8633 Capstan Way",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.18770217895508,
      "longitude": -123.12954711914062,
      "postal_code": "V6X0N5",
      "property_id": "106de64ce2f222e2",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "203 22213 Selkirk Avenue",
      "city": "Maple Ridge",
      "demographic_income_median_pre_tax": 55910,
      "estimate_political_lean": 6,
      "latitude": 49.21784591674805,
      "longitude": -122.60676574707033,
      "postal_code": "V2X2X4",
      "property_id": "106ecb932212bbb8",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "207 1035 Bernard Avenue",
      "city": "Kelowna",
      "demographic_income_median_pre_tax": 58802,
      "estimate_political_lean": 6,
      "latitude": 49.88618469238281,
      "longitude": -119.47858428955078,
      "postal_code": "V1Y6P7",
      "property_id": "1071f18a848faf3d",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1182 8668 Hazelbridge Way",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.18889236450195,
      "longitude": -123.1301727294922,
      "postal_code": "V6X0W2",
      "property_id": "1073ebed613c3216",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1703 777 Cardero Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 62658,
      "estimate_political_lean": 6,
      "latitude": 49.28961944580078,
      "longitude": -123.13220977783205,
      "postal_code": "V6G2G4",
      "property_id": "1074ce185f9d9698",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "307 8643 Logan Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 61694,
      "estimate_political_lean": 6,
      "latitude": 49.20765686035156,
      "longitude": -123.12515258789062,
      "postal_code": "V6P3T3",
      "property_id": "10768c708497c32a",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "6788 McKay Avenue",
      "city": "Burnaby",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.222171783447266,
      "longitude": -123.0085906982422,
      "postal_code": "V5J3S1",
      "property_id": "1076a62dfadd1290",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "236 Bowlsby Street",
      "city": "Nanaimo",
      "demographic_income_median_pre_tax": 59766,
      "estimate_political_lean": 4,
      "latitude": 49.14203643798828,
      "longitude": -123.92828369140624,
      "postal_code": "V9R5K1",
      "property_id": "1079ddf34b03b03b",
      "property_type": "Townhouse",
      "province": "British Columbia"
    },
    {
      "address": "1101 1067 Seymour Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.27790451049805,
      "longitude": -123.12327575683594,
      "postal_code": "V6B5S4",
      "property_id": "107ae72ebc5176dd",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "304 511 Ash Street",
      "city": "New Westminster",
      "demographic_income_median_pre_tax": 55910,
      "estimate_political_lean": 4,
      "latitude": 49.21119689941406,
      "longitude": -122.921630859375,
      "postal_code": "V3M3N4",
      "property_id": "107c8c5ce4bddbc0",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "704 6191 Buswell Street",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 59284,
      "estimate_political_lean": 6,
      "latitude": 49.1692008972168,
      "longitude": -123.13391876220705,
      "postal_code": "V6Y4C4",
      "property_id": "107d077297525b4f",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "30 151 8 Avenue SW",
      "city": "Salmon Arm",
      "demographic_income_median_pre_tax": 59766,
      "estimate_political_lean": 6,
      "latitude": 50.69407272338867,
      "longitude": -119.28677368164062,
      "postal_code": "V1E1B9",
      "property_id": "107d14615c84972",
      "property_type": "Townhouse",
      "province": "British Columbia"
    },
    {
      "address": "1805 1045 Austin Avenue",
      "city": "Coquitlam",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.249114990234375,
      "longitude": -122.8633270263672,
      "postal_code": "V3K0G9",
      "property_id": "10826c157d91186c",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "207 8707 Hudson Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 63140,
      "estimate_political_lean": 6,
      "latitude": 49.20685195922851,
      "longitude": -123.13475799560548,
      "postal_code": "V6P4M7",
      "property_id": "10842c8f447fa066",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "37 7077 Highland Drive",
      "city": "Port Hardy",
      "demographic_income_median_pre_tax": 57838,
      "estimate_political_lean": 4,
      "latitude": 50.72103118896485,
      "longitude": -127.50897216796876,
      "postal_code": "V0N2P0",
      "property_id": "1085348c42152b51",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "403 4872 Ontario Avenue",
      "city": "Powell River",
      "demographic_income_median_pre_tax": 60248,
      "estimate_political_lean": 4,
      "latitude": 49.84758758544922,
      "longitude": -124.51485443115234,
      "postal_code": "V8A3H1",
      "property_id": "1085ae3e611a8a7c",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "302 9130 Corbould Street",
      "city": "Chilliwack",
      "demographic_income_median_pre_tax": 54946,
      "estimate_political_lean": 6,
      "latitude": 49.16801071166992,
      "longitude": -121.9651107788086,
      "postal_code": "V2P4A5",
      "property_id": "1086e051a8636702",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "211 3595 Skaha Lake Road",
      "city": "Penticton",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.45516204833984,
      "longitude": -119.5878448486328,
      "postal_code": "V2A7K2",
      "property_id": "108735b25c38c964",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "30 310 Yorkton Avenue",
      "city": "Penticton",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.45657730102539,
      "longitude": -119.5902862548828,
      "postal_code": "V2A6Z8",
      "property_id": "1088214357a84d1c",
      "property_type": "Townhouse",
      "province": "British Columbia"
    },
    {
      "address": "1002 1099 Richards Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.27727508544922,
      "longitude": -123.12267303466795,
      "postal_code": "V6B3E4",
      "property_id": "1088d443cecb6ba7",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "123 3953 Godwin Avenue",
      "city": "Burnaby",
      "demographic_income_median_pre_tax": 34220,
      "estimate_political_lean": 6,
      "latitude": 49.248985290527344,
      "longitude": -122.97823333740234,
      "postal_code": "V5G4A1",
      "property_id": "108941a43b4d9108",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "306 1055 Richards Street",
      "city": "Vancouver",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.27752304077149,
      "longitude": -123.12199401855467,
      "postal_code": "V6B0C2",
      "property_id": "108a0f7c23fcb7ce",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1505 3331 No 3 Road",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.1892204284668,
      "longitude": -123.13182830810548,
      "postal_code": "V6X2B6",
      "property_id": "108a2187d998ddfe",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "807 505 Nelson Street",
      "city": "Coquitlam",
      "demographic_income_median_pre_tax": 61212,
      "estimate_political_lean": 6,
      "latitude": 49.249420166015625,
      "longitude": -122.8649444580078,
      "postal_code": "V3J0R5",
      "property_id": "108b2aaa90275b14",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "1205 6288 No3 Road",
      "city": "Richmond",
      "demographic_income_median_pre_tax": 59284,
      "estimate_political_lean": 6,
      "latitude": 49.16809844970703,
      "longitude": -123.13629150390624,
      "postal_code": "V6Y0J4",
      "property_id": "108ecb88b085a41f",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "216 85 Eighth Avenue",
      "city": "New Westminster",
      "demographic_income_median_pre_tax": 38317,
      "estimate_political_lean": 4,
      "latitude": 49.220924377441406,
      "longitude": -122.91547393798828,
      "postal_code": "V3L0E9",
      "property_id": "1090c39a2efeb45",
      "property_type": "Apartment",
      "province": "British Columbia"
    },
    {
      "address": "202 1155 Dufferin Street",
      "city": "Coquitlam",
      "demographic_income_median_pre_tax": 57838,
      "estimate_political_lean": 6,
      "latitude": 49.28014373779297,
      "longitude": -122.8038558959961,
      "postal_code": "V3B7K2",
      "property_id": "10949d68c31ada6e",
      "property_type": "Apartment",
      "province": "British Columbia"
    }
  ],
  "error": "",
  "pagination": {
    "current_page": 1,
    "has_next_page": true,
    "has_previous_page": false,
    "page_total": 355
  },
  "price_quote": false,
  "result_total": 35454,
  "time_ms": 147,
  "ui_info": {
    "country": "Canada",
    "country_abbreviation": "CA",
    "country_abbreviation_id": "9ace2b6431b7f1be",
    "country_abbreviation_link": "ca",
    "country_slug": "canada",
    "province": "British Columbia",
    "province_abbreviation": "BC",
    "province_abbreviation_id": "84b27e64bc119a2",
    "province_abbreviation_link": "ca/bc",
    "province_slug": "british_columbia"
  }
}

The same persuasion pull for Pennsylvania, where the swing counties are the whole game:

API request
TypeScript code
const houski_data = async (): Promise<PropertiesResponse> => {

    // You must copy the PropertiesResponse type declarations from the 
    // Houski API documentation to strongly type the response

    const url = new URL('http://127.0.0.1:8080/properties');
    url.searchParams.set('api_key', 'YOUR_API_KEY');
    url.searchParams.set('country_abbreviation', 'us');
    url.searchParams.set('demographic_income_median_pre_tax_lt', '65000');
    url.searchParams.set('estimate_political_lean_gte', '4');
    url.searchParams.set('estimate_political_lean_lte', '6');
    url.searchParams.set('property_type_in', 'Apartment,Townhouse');
    url.searchParams.set('province_abbreviation', 'pa');
    url.searchParams.set('results_per_page', '100');
    url.searchParams.set('select', 'address,postal_code,latitude,longitude,city,province,estimate_political_lean,property_type,demographic_income_median_pre_tax');

    const response = await fetch(url);
    const data = await response.json();

    return data;
}

(async () => {
let data: PropertiesResponse = await houski_data();

// Log the response
console.log(data);
})();
API response
JSON
{
  "cache_hit": false,
  "cost_cents": 28.0,
  "data": [
    {
      "address": "528 Woodbine Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 27364,
      "estimate_political_lean": 6,
      "latitude": 40.28188705444336,
      "longitude": -76.89263916015625,
      "property_id": "1002b3334aac260f",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "156 Lincoln Street",
      "city": "Steelton",
      "demographic_income_median_pre_tax": 46647,
      "estimate_political_lean": 6,
      "latitude": 40.23831558227539,
      "longitude": -76.84284973144531,
      "property_id": "100491082257e573",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "439 Crescent Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 52490,
      "estimate_political_lean": 6,
      "latitude": 40.25946044921875,
      "longitude": -76.87010955810547,
      "property_id": "10058a604d52157f",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1923 Hill Road",
      "city": "Reading",
      "demographic_income_median_pre_tax": 52059,
      "estimate_political_lean": 6,
      "latitude": 40.336158752441406,
      "longitude": -75.89990234375,
      "property_id": "1005ad6fe9d2f2d9",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "316 Spring Run Drive",
      "city": "Monroeville",
      "demographic_income_median_pre_tax": 47520,
      "estimate_political_lean": 4,
      "latitude": 40.42481231689453,
      "longitude": -79.76179504394531,
      "postal_code": "15146",
      "property_id": "10068213e825055",
      "property_type": "Apartment",
      "province": "Pennsylvania"
    },
    {
      "address": "105 Douglass Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 43049,
      "estimate_political_lean": 6,
      "latitude": 40.34762191772461,
      "longitude": -75.93457794189453,
      "property_id": "100844f13578c942",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "326 Verbeke Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 53977,
      "estimate_political_lean": 6,
      "latitude": 40.2703742980957,
      "longitude": -76.88803100585938,
      "property_id": "1008dc4185d54138",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "133 Wunder Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 34938,
      "estimate_political_lean": 6,
      "latitude": 40.332332611083984,
      "longitude": -75.91473388671875,
      "property_id": "100bcb090ab7bac1",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1231 Mulberry Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 14540,
      "estimate_political_lean": 6,
      "latitude": 40.26271057128906,
      "longitude": -76.87055206298828,
      "property_id": "100c03ade4dd58af",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1145 Chestnut Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 34938,
      "estimate_political_lean": 6,
      "latitude": 40.33210372924805,
      "longitude": -75.91463470458984,
      "property_id": "100c179d9ec3f3eb",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "436 S 18 Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 58832,
      "estimate_political_lean": 6,
      "latitude": 40.32810592651367,
      "longitude": -75.90213012695312,
      "property_id": "100d944d3e40a946",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1402 Cotton Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 57899,
      "estimate_political_lean": 6,
      "latitude": 40.32857131958008,
      "longitude": -75.91101837158203,
      "property_id": "100ff2592e3840d8",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1413 Cotton Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 57899,
      "estimate_political_lean": 6,
      "latitude": 40.3289794921875,
      "longitude": -75.91089630126953,
      "property_id": "1010d18be7a08650",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "257 Franklin Street",
      "city": "Steelton",
      "demographic_income_median_pre_tax": 46539,
      "estimate_political_lean": 6,
      "latitude": 40.23658752441406,
      "longitude": -76.85157775878906,
      "property_id": "1014ed79a2814b23",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "413 Delancey Court",
      "city": "Upper Allen",
      "demographic_income_median_pre_tax": 34429,
      "estimate_political_lean": 6,
      "latitude": 40.20818710327149,
      "longitude": -76.98150634765625,
      "postal_code": "17055",
      "property_id": "101567cdafb9ca5b",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1504 Perkiomen Avenue",
      "city": "Reading",
      "demographic_income_median_pre_tax": 44672,
      "estimate_political_lean": 6,
      "latitude": 40.32951354980469,
      "longitude": -75.90806579589844,
      "property_id": "101831d8a1a5f371",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "757 Bingaman Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 30701,
      "estimate_political_lean": 6,
      "latitude": 40.33106994628906,
      "longitude": -75.9229736328125,
      "property_id": "101931df964458f5",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1801 Derry Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 45249,
      "estimate_political_lean": 6,
      "latitude": 40.26146697998047,
      "longitude": -76.85977172851562,
      "property_id": "1019321730e4552d",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "140 Bosler Avenue",
      "city": "Lemoyne",
      "demographic_income_median_pre_tax": 50582,
      "estimate_political_lean": 6,
      "latitude": 40.24600982666016,
      "longitude": -76.89112091064453,
      "postal_code": "17043",
      "property_id": "1019b08a271d29fd",
      "property_type": "Apartment",
      "province": "Pennsylvania"
    },
    {
      "address": "219 N 11 Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 57557,
      "estimate_political_lean": 6,
      "latitude": 40.338809967041016,
      "longitude": -75.91558837890625,
      "property_id": "101c03e9651789df",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "2016 Berryhill Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 45249,
      "estimate_political_lean": 6,
      "latitude": 40.26229095458984,
      "longitude": -76.8551254272461,
      "property_id": "101c93b151a5423f",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1136 Green Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 62172,
      "estimate_political_lean": 6,
      "latitude": 40.342742919921875,
      "longitude": -75.91502380371094,
      "property_id": "101ca80707cfcc4",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1055 Union Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 60432,
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      "address": "905 Capital Street",
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    {
      "address": "725 N 15 Street",
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    {
      "address": "548 S 18 1/2 Street",
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      "address": "1015 N 17 Street",
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    {
      "address": "539 Franklin Street",
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      "address": "3024 N 5 Street",
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      "address": "120 N 3 Avenue",
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      "address": "2462 Brookwood Street",
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    {
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      "address": "620 N Front Street",
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      "address": "704 N Front Street",
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    {
      "address": "34 N 18 Street",
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      "address": "1413 Verbeke Street",
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      "address": "119 Upland Avenue",
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      "address": "1337 N 12 Street",
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      "address": "1829 State Street",
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    {
      "address": "1309 Howard Street",
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    {
      "address": "554 Dunkle Street",
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      "address": "1207 N 16 Street",
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    {
      "address": "729 Moss Street",
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      "address": "241 S 12 Street",
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      "address": "1423 Hunter Street",
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      "address": "220 Forster Street",
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    {
      "address": "706 S 25 Street",
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    {
      "address": "101 N 7 Avenue",
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      "address": "147 Cambridge Drive",
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    {
      "address": "1023 Spruce Street",
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    {
      "address": "505 Cherry Circle",
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      "address": "2518 N 2 Street",
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    {
      "address": "1747 Perkiomen Avenue",
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    {
      "address": "30 S 13 Street",
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      "address": "28 S 2 Street",
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      "address": "526 Windsor Street",
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    {
      "address": "354 Spring Street",
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    {
      "address": "540 S 18 1/2 Street",
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    {
      "address": "2003 Derry Street",
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    {
      "address": "446 N 12 Street",
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    {
      "address": "137 N 8 Street",
      "city": "Reading",
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    {
      "address": "S Front Street L6",
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    {
      "address": "1418 Berryhill Street",
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    {
      "address": "410 Hummel Avenue",
      "city": "Lemoyne",
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      "longitude": -76.8930892944336,
      "postal_code": "17043",
      "property_id": "1075d39c8edafd52",
      "property_type": "Apartment",
      "province": "Pennsylvania"
    },
    {
      "address": "1214 4 Avenue",
      "city": "Coraopolis",
      "demographic_income_median_pre_tax": 29046,
      "estimate_political_lean": 4,
      "latitude": 40.51686477661133,
      "longitude": -80.1603012084961,
      "postal_code": "15108",
      "property_id": "1079277a16ec9377",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "19 Red Barberry Drive",
      "city": "Valley Green",
      "demographic_income_median_pre_tax": 60711,
      "estimate_political_lean": 6,
      "latitude": 40.15789031982422,
      "longitude": -76.81390380859375,
      "property_id": "107a13246e759bdc",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "518 S 15 Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 57899,
      "estimate_political_lean": 6,
      "latitude": 40.327884674072266,
      "longitude": -75.90885925292969,
      "property_id": "107d8b6fe72e7ece",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "32 N 6 Avenue",
      "city": "West Reading",
      "demographic_income_median_pre_tax": 56174,
      "estimate_political_lean": 6,
      "latitude": 40.33620071411133,
      "longitude": -75.94900512695312,
      "property_id": "107f10def2884a19",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "908 N 18 Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 39335,
      "estimate_political_lean": 6,
      "latitude": 40.27488708496094,
      "longitude": -76.86723327636719,
      "property_id": "107fe45910e1b14e",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "430 A Minor Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 38099,
      "estimate_political_lean": 6,
      "latitude": 40.327850341796875,
      "longitude": -75.92459106445312,
      "property_id": "108244b0ccd780b4",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "529 Herman Avenue",
      "city": "Lemoyne",
      "demographic_income_median_pre_tax": 63500,
      "estimate_political_lean": 6,
      "latitude": 40.24166488647461,
      "longitude": -76.89424133300781,
      "postal_code": "17043",
      "property_id": "10829871eeb6990d",
      "property_type": "Apartment",
      "province": "Pennsylvania"
    },
    {
      "address": "505 Windsor Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 47106,
      "estimate_political_lean": 6,
      "latitude": 40.34928894042969,
      "longitude": -75.92741394042969,
      "property_id": "1083792663c6d004",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1223 N 11 Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 33008,
      "estimate_political_lean": 6,
      "latitude": 40.354034423828125,
      "longitude": -75.91560363769531,
      "property_id": "1084670f2dd46a66",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "344 N 12 Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 57557,
      "estimate_political_lean": 6,
      "latitude": 40.34082794189453,
      "longitude": -75.91413879394531,
      "property_id": "108635583fc043b7",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1191 Circleville Road",
      "city": "Park Forest Village",
      "demographic_income_median_pre_tax": 26463,
      "estimate_political_lean": 6,
      "latitude": 40.79811477661133,
      "longitude": -77.88985443115234,
      "postal_code": "16803",
      "property_id": "108676fd5280ec78",
      "property_type": "Apartment",
      "province": "Pennsylvania"
    },
    {
      "address": "2421 N 4 Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 59667,
      "estimate_political_lean": 6,
      "latitude": 40.285179138183594,
      "longitude": -76.89636993408203,
      "property_id": "1089d09eff91bd3",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1164 Perkiomen Avenue",
      "city": "Reading",
      "demographic_income_median_pre_tax": 24584,
      "estimate_political_lean": 6,
      "latitude": 40.3343620300293,
      "longitude": -75.91551971435547,
      "property_id": "108c8847b8131daf",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "2132 Jefferson Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 27364,
      "estimate_political_lean": 6,
      "latitude": 40.28137969970703,
      "longitude": -76.88954162597656,
      "property_id": "108d646234b0a32b",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "827 Vankirk Street",
      "city": "Clairton",
      "demographic_income_median_pre_tax": 54931,
      "estimate_political_lean": 4,
      "latitude": 40.28629302978515,
      "longitude": -79.8849868774414,
      "postal_code": "15025",
      "property_id": "108d84b911afa120",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1650 N 10 Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 60432,
      "estimate_political_lean": 6,
      "latitude": 40.36002731323242,
      "longitude": -75.91741180419922,
      "property_id": "108dc50dd3f19d34",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1116 N 3 Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 53977,
      "estimate_political_lean": 6,
      "latitude": 40.268341064453125,
      "longitude": -76.88842010498047,
      "property_id": "10908069d58f9098",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "2511 Jefferson Street",
      "city": "Harrisburg",
      "demographic_income_median_pre_tax": 59667,
      "estimate_political_lean": 6,
      "latitude": 40.288516998291016,
      "longitude": -76.8917007446289,
      "property_id": "1092d6290c3e40f7",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    },
    {
      "address": "1411 Cotton Street",
      "city": "Reading",
      "demographic_income_median_pre_tax": 57899,
      "estimate_political_lean": 6,
      "latitude": 40.32878494262695,
      "longitude": -75.91056823730469,
      "property_id": "1092f557677f2e71",
      "property_type": "Townhouse",
      "province": "Pennsylvania"
    }
  ],
  "error": "",
  "pagination": {
    "current_page": 1,
    "has_next_page": true,
    "has_previous_page": false,
    "page_total": 363
  },
  "price_quote": false,
  "result_total": 36207,
  "time_ms": 120,
  "ui_info": {
    "country": "United States",
    "country_abbreviation": "US",
    "country_abbreviation_id": "c148472ce4bd39d",
    "country_abbreviation_link": "us",
    "country_slug": "united_states",
    "province": "Pennsylvania",
    "province_abbreviation": "PA",
    "province_abbreviation_id": "85a923357c4bb054",
    "province_abbreviation_link": "us/pa",
    "province_slug": "pennsylvania"
  }
}

Pair the lean filter with whichever property or demographic columns make the message specific. The point is to print fewer pieces and write each piece to match the area it lands in.

Use case three: prospect in friendly territory

Advocacy groups, riding associations, party committees, and third-party campaigns often need to recruit volunteers, sign up monthly donors, or grow an email list. The mail piece is not asking for a vote. It is asking for a small commitment.

Friendly territory is the cheapest place to recruit. Filter for areas where the estimate aligns with your cause, and overlay the property and demographic data that fits your ask. A youth-vote advocacy group targets areas with a high share of residents in their late twenties. A retiree advocacy group targets areas with a high share of residents 65 and older. A climate advocacy group cross-references the lean estimate with the air quality and transit scores.

API request
TypeScript code
const houski_data = async (): Promise<PropertiesResponse> => {

    // You must copy the PropertiesResponse type declarations from the 
    // Houski API documentation to strongly type the response

    const url = new URL('http://127.0.0.1:8080/properties');
    url.searchParams.set('api_key', 'YOUR_API_KEY');
    url.searchParams.set('country_abbreviation', 'ca');
    url.searchParams.set('demographic_age_25_to_29_years_percent_gt', '0.15');
    url.searchParams.set('estimate_political_lean_lte', '3');
    url.searchParams.set('property_type_in', 'Apartment,Townhouse');
    url.searchParams.set('results_per_page', '100');
    url.searchParams.set('select', 'address,postal_code,latitude,longitude,city,province,estimate_political_lean,demographic_age_25_to_29_years_percent');

    const response = await fetch(url);
    const data = await response.json();

    return data;
}

(async () => {
let data: PropertiesResponse = await houski_data();

// Log the response
console.log(data);
})();
API response
JSON
{
  "cache_hit": false,
  "cost_cents": 26.999998092651367,
  "data": [
    {
      "address": "41 2202 Rosemont Boulevard",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.16438356041908264,
      "estimate_political_lean": 2,
      "latitude": 45.54375457763672,
      "longitude": -73.58821105957031,
      "postal_code": "H2G1T5",
      "property_id": "10000874d2ccb6ea",
      "province": "Quebec"
    },
    {
      "address": "2168 Rue Joliette",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1801242232322693,
      "estimate_political_lean": 3,
      "latitude": 45.54542922973633,
      "longitude": -73.54736328125,
      "postal_code": "H1X3L7",
      "property_id": "10007ac563262cc4",
      "province": "Quebec"
    },
    {
      "address": "3686 Rue Evelyn",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.15032680332660675,
      "estimate_political_lean": 3,
      "latitude": 45.466941833496094,
      "longitude": -73.56964874267578,
      "postal_code": "H4G2H1",
      "property_id": "1000bf53decbf75a",
      "province": "Quebec"
    },
    {
      "address": "3563 Rue Hochelaga",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1959459483623505,
      "estimate_political_lean": 3,
      "latitude": 45.5467414855957,
      "longitude": -73.55172729492188,
      "postal_code": "H1L5K3",
      "property_id": "1001264ae35446c5",
      "province": "Quebec"
    },
    {
      "address": "4988 Adam Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1627907007932663,
      "estimate_political_lean": 3,
      "latitude": 45.55825424194336,
      "longitude": -73.53092956542969,
      "postal_code": "H1V1W5",
      "property_id": "10019efd04286616",
      "province": "Quebec"
    },
    {
      "address": "7597 Rue Drolet",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.22807016968727112,
      "estimate_political_lean": 3,
      "latitude": 45.53987121582031,
      "longitude": -73.62207794189453,
      "postal_code": "H2S3S3",
      "property_id": "100231d2cab50fd1",
      "province": "Quebec"
    },
    {
      "address": "1667 Logan Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.15315315127372742,
      "estimate_political_lean": 3,
      "latitude": 45.523475646972656,
      "longitude": -73.55594635009766,
      "postal_code": "H2L1Y1",
      "property_id": "10024975dd6aa3ad",
      "province": "Quebec"
    },
    {
      "address": "7965 Rue Marquette",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1599999964237213,
      "estimate_political_lean": 3,
      "latitude": 45.55183029174805,
      "longitude": -73.6172866821289,
      "postal_code": "H2J4C6",
      "property_id": "10035091661e49fc",
      "province": "Quebec"
    },
    {
      "address": "4431 Avenue Henri-Julien",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.19090908765792847,
      "estimate_political_lean": 3,
      "latitude": 45.52254867553711,
      "longitude": -73.58268737792969,
      "postal_code": "H2W2L9",
      "property_id": "10036d2eec3aa05",
      "province": "Quebec"
    },
    {
      "address": "1587 Laurier Avenue E",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1946902722120285,
      "estimate_political_lean": 2,
      "latitude": 45.53514862060547,
      "longitude": -73.58256530761719,
      "postal_code": "H2J1J1",
      "property_id": "100455bbb471af84",
      "province": "Quebec"
    },
    {
      "address": "1035 Mason Street",
      "city": "Victoria",
      "demographic_age_25_to_29_years_percent": 0.1666666716337204,
      "estimate_political_lean": 3,
      "latitude": 48.42784881591797,
      "longitude": -123.35539245605467,
      "postal_code": "V8V0C7",
      "property_id": "100463656d066c9b",
      "province": "British Columbia"
    },
    {
      "address": "6 2160 Des Carrieres Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.16438356041908264,
      "estimate_political_lean": 2,
      "latitude": 45.543190002441406,
      "longitude": -73.58741760253906,
      "postal_code": "H2G1X3",
      "property_id": "10048cc8dfaf04be",
      "province": "Quebec"
    },
    {
      "address": "413 1295 Des Carrieres Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1921568661928177,
      "estimate_political_lean": 2,
      "latitude": 45.536094665527344,
      "longitude": -73.59188842773438,
      "postal_code": "H2S0E1",
      "property_id": "1004a20c32e76bd7",
      "province": "Quebec"
    },
    {
      "address": "6865 Rue Drolet",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.16304348409175873,
      "estimate_political_lean": 2,
      "latitude": 45.536319732666016,
      "longitude": -73.6120376586914,
      "postal_code": "H2S2V6",
      "property_id": "100516bb57c39ea5",
      "province": "Quebec"
    },
    {
      "address": "4029 A De Bullion Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.16853933036327362,
      "estimate_political_lean": 2,
      "latitude": 45.51838684082031,
      "longitude": -73.57781219482422,
      "postal_code": "H2W2E3",
      "property_id": "10053bd0859c945f",
      "province": "Quebec"
    },
    {
      "address": "1 126 Bayswater Avenue",
      "city": "Ottawa",
      "demographic_age_25_to_29_years_percent": 0.17924527823925018,
      "estimate_political_lean": 3,
      "latitude": 45.40338516235352,
      "longitude": -75.71884155273438,
      "postal_code": "K1Y2G1",
      "property_id": "100589eda5e21c8f",
      "province": "Ontario"
    },
    {
      "address": "6248 Drolet Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.18803419172763824,
      "estimate_political_lean": 2,
      "latitude": 45.53196334838867,
      "longitude": -73.60356140136719,
      "postal_code": "H2S2S7",
      "property_id": "1005966be8272541",
      "province": "Quebec"
    },
    {
      "address": "9737 83 Avenue NW",
      "city": "Edmonton",
      "demographic_age_25_to_29_years_percent": 0.15217390656471252,
      "estimate_political_lean": 3,
      "latitude": 53.51906204223633,
      "longitude": -113.48418426513672,
      "postal_code": "T6E2B6",
      "property_id": "1005a4c94881fdac",
      "province": "Alberta"
    },
    {
      "address": "502 130 Somerset Street W",
      "city": "Ottawa",
      "demographic_age_25_to_29_years_percent": 0.210317462682724,
      "estimate_political_lean": 3,
      "latitude": 45.41839599609375,
      "longitude": -75.68888092041016,
      "postal_code": "K2P0H9",
      "property_id": "1005b9f037a12513",
      "province": "Ontario"
    },
    {
      "address": "308 11103 84 Avenue NW",
      "city": "Edmonton",
      "demographic_age_25_to_29_years_percent": 0.2370370328426361,
      "estimate_political_lean": 3,
      "latitude": 53.51993942260742,
      "longitude": -113.51811981201172,
      "postal_code": "T6G2X4",
      "property_id": "1005e995cd9ed5f5",
      "province": "Alberta"
    },
    {
      "address": "3495 Rue Ontario E",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1801242232322693,
      "estimate_political_lean": 3,
      "latitude": 45.54420852661133,
      "longitude": -73.5456771850586,
      "postal_code": "H1W3A4",
      "property_id": "1005ee5af83eba70",
      "province": "Quebec"
    },
    {
      "address": "7332 Saint-Andre Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1650485396385193,
      "estimate_political_lean": 3,
      "latitude": 45.54209518432617,
      "longitude": -73.61548614501953,
      "postal_code": "H2R2P7",
      "property_id": "1006340290af2629",
      "province": "Quebec"
    },
    {
      "address": "5137 Avenue De L Esplanade",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1599999964237213,
      "estimate_political_lean": 3,
      "latitude": 45.52146911621094,
      "longitude": -73.5952377319336,
      "postal_code": "H2T2Z1",
      "property_id": "1006fa6097b58ac2",
      "province": "Quebec"
    },
    {
      "address": "408 40 Alexander Street",
      "city": "Toronto",
      "demographic_age_25_to_29_years_percent": 0.15040650963783264,
      "estimate_political_lean": 3,
      "latitude": 43.66347885131836,
      "longitude": -79.38167572021484,
      "postal_code": "M4Y1B5",
      "property_id": "10071522232a5578",
      "province": "Ontario"
    },
    {
      "address": "C309 95 Saint-Joseph Boulevard E",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1805555522441864,
      "estimate_political_lean": 3,
      "latitude": 45.52361679077149,
      "longitude": -73.5907974243164,
      "postal_code": "H2T1H2",
      "property_id": "100859e1c954cace",
      "province": "Quebec"
    },
    {
      "address": "27 1418 Papineau Avenue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.21296297013759613,
      "estimate_political_lean": 3,
      "latitude": 45.52260208129883,
      "longitude": -73.55270385742188,
      "postal_code": "H2K4H4",
      "property_id": "1008e8cd12eccd21",
      "province": "Quebec"
    },
    {
      "address": "3718 Rue St-Hubert",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1504424810409546,
      "estimate_political_lean": 3,
      "latitude": 45.52035903930664,
      "longitude": -73.57012939453125,
      "postal_code": "H2L4A2",
      "property_id": "1008fb27ed410b0d",
      "province": "Quebec"
    },
    {
      "address": "109 5240 Berri Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1938326060771942,
      "estimate_political_lean": 3,
      "latitude": 45.52897644042969,
      "longitude": -73.59069061279297,
      "postal_code": "H2J3Z9",
      "property_id": "10094525fea8e95a",
      "province": "Quebec"
    },
    {
      "address": "B 4000 Lesage Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.17431192100048065,
      "estimate_political_lean": 3,
      "latitude": 45.46414566040039,
      "longitude": -73.5785140991211,
      "postal_code": "H4G1A4",
      "property_id": "1009b17d1400b756",
      "province": "Quebec"
    },
    {
      "address": "4350 Avenue De L Hotel-De-Ville",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1538461595773697,
      "estimate_political_lean": 3,
      "latitude": 45.52096939086914,
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      "address": "1415 Avenue D Orleans",
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      "address": "109 1740 Papineau Avenue",
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      "address": "7639 Berri Rue",
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      "province": "Quebec"
    },
    {
      "address": "1416 66 Isabella Street",
      "city": "Toronto",
      "demographic_age_25_to_29_years_percent": 0.22469136118888855,
      "estimate_political_lean": 3,
      "latitude": 43.66836166381836,
      "longitude": -79.38276672363281,
      "postal_code": "M4Y1N3",
      "property_id": "1017bbad71edce6f",
      "province": "Ontario"
    },
    {
      "address": "322 2050 Scotia Street",
      "city": "Vancouver",
      "demographic_age_25_to_29_years_percent": 0.16019417345523834,
      "estimate_political_lean": 3,
      "latitude": 49.266788482666016,
      "longitude": -123.09822082519533,
      "postal_code": "V5T4T1",
      "property_id": "10189a188b91d51d",
      "province": "British Columbia"
    },
    {
      "address": "1489 Avenue Jeanne-Darc",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.2118644118309021,
      "estimate_political_lean": 3,
      "latitude": 45.548221588134766,
      "longitude": -73.53717041015625,
      "property_id": "1018b2d4d177be08",
      "province": "Quebec"
    },
    {
      "address": "603 2425 St Catherines Street",
      "city": "Vancouver",
      "demographic_age_25_to_29_years_percent": 0.1770833283662796,
      "estimate_political_lean": 3,
      "latitude": 49.26313781738281,
      "longitude": -123.0856475830078,
      "postal_code": "V5T3Y1",
      "property_id": "1018c3fa7e2d6129",
      "province": "British Columbia"
    },
    {
      "address": "5464 Rue Fullum",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.15573769807815552,
      "estimate_political_lean": 2,
      "latitude": 45.54220962524414,
      "longitude": -73.58084869384766,
      "postal_code": "H3H1N2",
      "property_id": "1018e6304a5b3377",
      "province": "Quebec"
    },
    {
      "address": "172 Rue Dargenson",
      "city": "Québec",
      "demographic_age_25_to_29_years_percent": 0.2307692319154739,
      "estimate_political_lean": 3,
      "latitude": 46.8125114440918,
      "longitude": -71.2350082397461,
      "postal_code": "G1K2N6",
      "property_id": "10190ceb213bb357",
      "province": "Quebec"
    },
    {
      "address": "209 Rue Bourget",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1702127605676651,
      "estimate_political_lean": 3,
      "latitude": 45.478729248046875,
      "longitude": -73.57974243164062,
      "postal_code": "H4C1Z7",
      "property_id": "10199e510df087ef",
      "province": "Quebec"
    },
    {
      "address": "1005 70 Gloucester Street",
      "city": "Ottawa",
      "demographic_age_25_to_29_years_percent": 0.2294117659330368,
      "estimate_political_lean": 3,
      "latitude": 45.419097900390625,
      "longitude": -75.6948471069336,
      "postal_code": "K2P1N6",
      "property_id": "10199e621a83cf81",
      "province": "Ontario"
    },
    {
      "address": "34 3428 Coloniale Avenue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.19130434095859528,
      "estimate_political_lean": 3,
      "latitude": 45.51365280151367,
      "longitude": -73.56973266601562,
      "postal_code": "H2X2Y4",
      "property_id": "101a81b075f1612d",
      "province": "Quebec"
    },
    {
      "address": "284 5 Avenue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.1666666716337204,
      "estimate_political_lean": 3,
      "latitude": 45.45591735839844,
      "longitude": -73.56854248046875,
      "postal_code": "H4G2Z1",
      "property_id": "101adada156f8f6e",
      "province": "Quebec"
    },
    {
      "address": "1506 556 Laurier Avenue W",
      "city": "Ottawa",
      "demographic_age_25_to_29_years_percent": 0.17741934955120087,
      "estimate_political_lean": 3,
      "latitude": 45.41536331176758,
      "longitude": -75.7065658569336,
      "postal_code": "K1R7X2",
      "property_id": "101af86c082969a6",
      "province": "Ontario"
    },
    {
      "address": "107300 79 Avenue NW",
      "city": "Edmonton",
      "demographic_age_25_to_29_years_percent": 0.19801980257034305,
      "estimate_political_lean": 3,
      "latitude": 53.515472412109375,
      "longitude": -113.50775909423828,
      "property_id": "101b10c46e7e2f7d",
      "province": "Alberta"
    },
    {
      "address": "106 5 Avenue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.17424242198467255,
      "estimate_political_lean": 3,
      "latitude": 45.45580291748047,
      "longitude": -73.5660629272461,
      "postal_code": "H4G2Y9",
      "property_id": "101b4dc68da9ddc",
      "province": "Quebec"
    },
    {
      "address": "609 141 Cooper Street",
      "city": "Ottawa",
      "demographic_age_25_to_29_years_percent": 0.210317462682724,
      "estimate_political_lean": 3,
      "latitude": 45.41934585571289,
      "longitude": -75.68937683105469,
      "postal_code": "K2P0E8",
      "property_id": "101b9cf56543390d",
      "province": "Ontario"
    },
    {
      "address": "10804 79 Avenue NW",
      "city": "Edmonton",
      "demographic_age_25_to_29_years_percent": 0.19801980257034305,
      "estimate_political_lean": 3,
      "latitude": 53.51531219482422,
      "longitude": -113.5096206665039,
      "postal_code": "T6E1S5",
      "property_id": "101c2b75b08983b5",
      "province": "Alberta"
    },
    {
      "address": "12 2655 Hogan Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.17000000178813934,
      "estimate_political_lean": 3,
      "latitude": 45.538421630859375,
      "longitude": -73.5593032836914,
      "postal_code": "H2K2T5",
      "property_id": "101ca1d456ee6770",
      "province": "Quebec"
    },
    {
      "address": "5154 Diberville Rue",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.15573769807815552,
      "estimate_political_lean": 2,
      "latitude": 45.5423698425293,
      "longitude": -73.57716369628906,
      "postal_code": "H2G2A8",
      "property_id": "101cbf9175d25b3",
      "province": "Quebec"
    },
    {
      "address": "502 3645 Sherbrooke Rue E",
      "city": "Montréal",
      "demographic_age_25_to_29_years_percent": 0.2090909034013748,
      "estimate_political_lean": 3,
      "latitude": 45.548805236816406,
      "longitude": -73.55552673339844,
      "postal_code": "H1W1E5",
      "property_id": "101d51fe3f0b735e",
      "province": "Quebec"
    }
  ],
  "error": "",
  "pagination": {
    "current_page": 1,
    "has_next_page": true,
    "has_previous_page": false,
    "page_total": 2015
  },
  "price_quote": false,
  "result_total": 201469,
  "time_ms": 137,
  "ui_info": {
    "country": "Canada",
    "country_abbreviation": "CA",
    "country_abbreviation_id": "9ace2b6431b7f1be",
    "country_abbreviation_link": "ca",
    "country_slug": "canada"
  }
}

And the same national pull across the United States:

API request
TypeScript code
const houski_data = async (): Promise<PropertiesResponse> => {

    // You must copy the PropertiesResponse type declarations from the 
    // Houski API documentation to strongly type the response

    const url = new URL('http://127.0.0.1:8080/properties');
    url.searchParams.set('api_key', 'YOUR_API_KEY');
    url.searchParams.set('country_abbreviation', 'us');
    url.searchParams.set('demographic_age_25_to_29_years_percent_gt', '0.15');
    url.searchParams.set('estimate_political_lean_lte', '3');
    url.searchParams.set('property_type_in', 'Apartment,Townhouse');
    url.searchParams.set('results_per_page', '100');
    url.searchParams.set('select', 'address,postal_code,latitude,longitude,city,province,estimate_political_lean,demographic_age_25_to_29_years_percent');

    const response = await fetch(url);
    const data = await response.json();

    return data;
}

(async () => {
let data: PropertiesResponse = await houski_data();

// Log the response
console.log(data);
})();
API response
JSON
{
  "cache_hit": false,
  "cost_cents": 26.999998092651367,
  "data": [
    {
      "address": "511 807 Davis Street",
      "city": "Evanston",
      "demographic_age_25_to_29_years_percent": 0.17692767083644867,
      "estimate_political_lean": 3,
      "latitude": 42.04766845703125,
      "longitude": -87.68260192871094,
      "postal_code": "60201",
      "property_id": "1000155179f3a323",
      "province": "Illinois"
    },
    {
      "address": "870 N Mohawk Street",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.2199699729681015,
      "estimate_political_lean": 2,
      "latitude": 41.898494720458984,
      "longitude": -87.64137268066406,
      "postal_code": "60610",
      "property_id": "100015eff7436c78",
      "province": "Illinois"
    },
    {
      "address": "839 Corinthian Avenue",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.23218996822834015,
      "estimate_political_lean": 1,
      "latitude": 39.97040557861328,
      "longitude": -75.17054748535156,
      "postal_code": "19130",
      "property_id": "10002a6eebfda8fb",
      "province": "Pennsylvania"
    },
    {
      "address": "2416 N Washington Street",
      "city": "Denver",
      "demographic_age_25_to_29_years_percent": 0.16623151302337646,
      "estimate_political_lean": 1,
      "latitude": 39.75247573852539,
      "longitude": -104.97769165039062,
      "postal_code": "80205",
      "property_id": "10002b16187c80f2",
      "province": "Colorado"
    },
    {
      "address": "3053 N Orkney Street",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.1570175439119339,
      "estimate_political_lean": 1,
      "latitude": 39.99755096435547,
      "longitude": -75.13836669921875,
      "postal_code": "19133",
      "property_id": "1000491075ac3a5a",
      "province": "Pennsylvania"
    },
    {
      "address": "F301 55 Pharr Road NW",
      "city": "Atlanta",
      "demographic_age_25_to_29_years_percent": 0.1875,
      "estimate_political_lean": 2,
      "latitude": 33.83745193481445,
      "longitude": -84.38412475585938,
      "postal_code": "30305",
      "property_id": "10005870775b4bfb",
      "province": "Georgia"
    },
    {
      "address": "625 131 E Davie Street",
      "city": "Raleigh",
      "demographic_age_25_to_29_years_percent": 0.2951739728450775,
      "estimate_political_lean": 3,
      "latitude": 35.775699615478516,
      "longitude": -78.63764190673828,
      "postal_code": "27601",
      "property_id": "10005a999c333ce7",
      "province": "North Carolina"
    },
    {
      "address": "230 1677 54 Avenue N",
      "city": "Nashville",
      "demographic_age_25_to_29_years_percent": 0.4079754650592804,
      "estimate_political_lean": 3,
      "latitude": 36.167869567871094,
      "longitude": -86.85424041748047,
      "postal_code": "37209",
      "property_id": "10008cbfc79058ee",
      "province": "Tennessee"
    },
    {
      "address": "4351 Fleming Street",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.33111703395843506,
      "estimate_political_lean": 2,
      "latitude": 40.02826690673828,
      "longitude": -75.21913146972656,
      "postal_code": "19128",
      "property_id": "10008cc571073a6b",
      "province": "Pennsylvania"
    },
    {
      "address": "D 802 NW 133 Street",
      "city": "Salmon Creek",
      "demographic_age_25_to_29_years_percent": 0.21238937973976135,
      "estimate_political_lean": 3,
      "latitude": 45.717041015625,
      "longitude": -122.67913818359376,
      "postal_code": "98685",
      "property_id": "10009becd9dc6b55",
      "province": "Washington"
    },
    {
      "address": "10 1414 Wilder Avenue",
      "city": "Honolulu",
      "demographic_age_25_to_29_years_percent": 0.22085444629192352,
      "estimate_political_lean": 3,
      "latitude": 21.3046817779541,
      "longitude": -157.8359832763672,
      "postal_code": "96822",
      "property_id": "1000aad7b6c510c3",
      "province": "Hawaii"
    },
    {
      "address": "3 1839 Patterson Alley",
      "city": "Eugene",
      "demographic_age_25_to_29_years_percent": 0.20545560121536255,
      "estimate_political_lean": 3,
      "latitude": 44.03956604003906,
      "longitude": -123.08425903320312,
      "postal_code": "97401",
      "property_id": "1000b561994a94b4",
      "province": "Oregon"
    },
    {
      "address": "703 4 Avenue",
      "city": "Kirkland",
      "demographic_age_25_to_29_years_percent": 0.2076045572757721,
      "estimate_political_lean": 2,
      "latitude": 47.6777458190918,
      "longitude": -122.19535064697266,
      "postal_code": "98033",
      "property_id": "100136bbc2163710",
      "province": "Washington"
    },
    {
      "address": "9 Autumn Jade Court",
      "city": "Madison",
      "demographic_age_25_to_29_years_percent": 0.23355869948863983,
      "estimate_political_lean": 2,
      "latitude": 43.00748825073242,
      "longitude": -89.50668334960938,
      "postal_code": "53719",
      "property_id": "10014a890202851",
      "province": "Wisconsin"
    },
    {
      "address": "3151 Aldrich Avenue S",
      "city": "Minneapolis",
      "demographic_age_25_to_29_years_percent": 0.20297029614448547,
      "estimate_political_lean": 3,
      "latitude": 44.94491195678711,
      "longitude": -93.2891616821289,
      "postal_code": "55408",
      "property_id": "100198d69409d6e6",
      "province": "Minnesota"
    },
    {
      "address": "7722 Lois Lowry Lane",
      "city": "Madison",
      "demographic_age_25_to_29_years_percent": 0.25703421235084534,
      "estimate_political_lean": 1,
      "latitude": 43.04671859741211,
      "longitude": -89.51888275146484,
      "postal_code": "53719",
      "property_id": "1001bab8e3ab3b0e",
      "province": "Wisconsin"
    },
    {
      "address": "1 4332 N Ashland Avenue",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.1927899718284607,
      "estimate_political_lean": 2,
      "latitude": 41.96077346801758,
      "longitude": -87.6697006225586,
      "postal_code": "60613",
      "property_id": "1001cf816a65c54d",
      "province": "Illinois"
    },
    {
      "address": "205 5999 Rancho Mission Road",
      "city": "San Diego",
      "demographic_age_25_to_29_years_percent": 0.15555556118488312,
      "estimate_political_lean": 3,
      "latitude": 32.78337860107422,
      "longitude": -117.10935974121094,
      "postal_code": "92108",
      "property_id": "1001d659b9636234",
      "province": "California"
    },
    {
      "address": "7211 Ivy Chase Way NE",
      "city": "Atlanta",
      "demographic_age_25_to_29_years_percent": 0.2365636974573135,
      "estimate_political_lean": 2,
      "latitude": 33.85626220703125,
      "longitude": -84.3792953491211,
      "postal_code": "30342",
      "property_id": "1001d8864aaabfb8",
      "province": "Georgia"
    },
    {
      "address": "4844 W Park Circle",
      "city": "East Point",
      "demographic_age_25_to_29_years_percent": 0.2563868761062622,
      "estimate_political_lean": 2,
      "latitude": 33.63224411010742,
      "longitude": -84.51579284667969,
      "postal_code": "30349",
      "property_id": "1001e55eac10fdfc",
      "province": "Georgia"
    },
    {
      "address": "627 W Fullerton Parkway",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.2528127133846283,
      "estimate_political_lean": 2,
      "latitude": 41.925296783447266,
      "longitude": -87.64498901367188,
      "postal_code": "60614",
      "property_id": "1001ede220c8ce2e",
      "province": "Illinois"
    },
    {
      "address": "1432 N Leithgow Street",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.23819516599178311,
      "estimate_political_lean": 1,
      "latitude": 39.9732780456543,
      "longitude": -75.14299011230469,
      "postal_code": "19122",
      "property_id": "1001ee185824fb7a",
      "province": "Pennsylvania"
    },
    {
      "address": "2 22421 Denker Avenue",
      "city": "Los Angeles",
      "demographic_age_25_to_29_years_percent": 0.15030884742736816,
      "estimate_political_lean": 3,
      "latitude": 33.82267379760742,
      "longitude": -118.30420684814452,
      "postal_code": "90501",
      "property_id": "1001fea3d1d35acb",
      "province": "California"
    },
    {
      "address": "715 100 W Squantum Street",
      "city": "Quincy",
      "demographic_age_25_to_29_years_percent": 0.2889733910560608,
      "estimate_political_lean": 2,
      "latitude": 42.27302169799805,
      "longitude": -71.03043365478516,
      "property_id": "10020a6c685301a5",
      "province": "Massachusetts"
    },
    {
      "address": "701 1205 SW Cardinell Drive",
      "city": "Portland",
      "demographic_age_25_to_29_years_percent": 0.21052631735801697,
      "estimate_political_lean": 2,
      "latitude": 45.510746002197266,
      "longitude": -122.68985748291016,
      "postal_code": "97201",
      "property_id": "10020a784550fdfc",
      "province": "Oregon"
    },
    {
      "address": "C222 3950 Goodpasture Loop",
      "city": "Eugene",
      "demographic_age_25_to_29_years_percent": 0.30296456813812256,
      "estimate_political_lean": 3,
      "latitude": 44.09003448486328,
      "longitude": -123.10330200195312,
      "postal_code": "97401",
      "property_id": "100211dbaaeaea2a",
      "province": "Oregon"
    },
    {
      "address": "206 2943 N Lincoln Avenue",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.2083333283662796,
      "estimate_political_lean": 2,
      "latitude": 41.93545150756836,
      "longitude": -87.66226196289062,
      "postal_code": "60657",
      "property_id": "10023e0712450781",
      "province": "Illinois"
    },
    {
      "address": "2933 N 23 Street",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.1987421363592148,
      "estimate_political_lean": 1,
      "latitude": 39.9996337890625,
      "longitude": -75.16805267333984,
      "postal_code": "19132",
      "property_id": "10023e903d57f276",
      "province": "Pennsylvania"
    },
    {
      "address": "1731 E 32 Street",
      "city": "Baltimore",
      "demographic_age_25_to_29_years_percent": 0.17675544321537018,
      "estimate_political_lean": 0,
      "latitude": 39.32661819458008,
      "longitude": -76.59082794189453,
      "postal_code": "21218",
      "property_id": "10024a5206e167e8",
      "province": "Maryland"
    },
    {
      "address": "603 100 Atlantic Avenue",
      "city": "Long Beach",
      "demographic_age_25_to_29_years_percent": 0.1618846207857132,
      "estimate_political_lean": 3,
      "latitude": 33.76840591430664,
      "longitude": -118.18462371826172,
      "postal_code": "90802",
      "property_id": "1002743fed55183",
      "province": "California"
    },
    {
      "address": "2401 E Clearfield Street",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.2253909856081009,
      "estimate_political_lean": 1,
      "latitude": 39.986778259277344,
      "longitude": -75.10808563232422,
      "postal_code": "19134",
      "property_id": "100283085cdb30a8",
      "province": "Pennsylvania"
    },
    {
      "address": "307 Ginger Lane",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.15017403662204742,
      "estimate_political_lean": 2,
      "latitude": 40.03937149047851,
      "longitude": -75.22933197021484,
      "postal_code": "19128",
      "property_id": "1002880c543d3b5c",
      "province": "Pennsylvania"
    },
    {
      "address": "177 215 N King Street",
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      "address": "1 3416 N Racine Avenue",
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      "address": "911 210 S Desplaines Street",
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      "address": "2151 N Racine Avenue",
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      "latitude": 41.921329498291016,
      "longitude": -87.65811920166016,
      "postal_code": "60614",
      "property_id": "1006dea680345b5",
      "province": "Illinois"
    },
    {
      "address": "2 1943 W Foster Avenue",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.19785575568675995,
      "estimate_political_lean": 2,
      "latitude": 41.975791931152344,
      "longitude": -87.67816162109375,
      "postal_code": "60640",
      "property_id": "1006deace6a420f9",
      "province": "Illinois"
    },
    {
      "address": "3 2053 N Clifton Avenue",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.15923886001110077,
      "estimate_political_lean": 2,
      "latitude": 41.91961288452149,
      "longitude": -87.6567153930664,
      "postal_code": "60614",
      "property_id": "1006e813a2c6373a",
      "province": "Illinois"
    },
    {
      "address": "1712 Euclid Street NW",
      "city": "Washington",
      "demographic_age_25_to_29_years_percent": 0.27341389656066895,
      "estimate_political_lean": 0,
      "latitude": 38.922950744628906,
      "longitude": -77.03943634033203,
      "postal_code": "20009",
      "property_id": "1006f927f8a2eada",
      "province": "District of Columbia"
    },
    {
      "address": "1N 4322 N Ashland Avenue",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.1927899718284607,
      "estimate_political_lean": 2,
      "latitude": 41.960472106933594,
      "longitude": -87.66969299316406,
      "postal_code": "60613",
      "property_id": "100707b5803c31c1",
      "province": "Illinois"
    },
    {
      "address": "849 2601 Pennsylvania Avenue",
      "city": "Philadelphia",
      "demographic_age_25_to_29_years_percent": 0.19233186542987823,
      "estimate_political_lean": 1,
      "latitude": 39.96879577636719,
      "longitude": -75.1805648803711,
      "postal_code": "19130",
      "property_id": "10073a2e7e63faf7",
      "province": "Pennsylvania"
    },
    {
      "address": "5000 Circle Court",
      "city": "Crestwood",
      "demographic_age_25_to_29_years_percent": 0.1808346211910248,
      "estimate_political_lean": 3,
      "latitude": 41.649845123291016,
      "longitude": -87.74211120605469,
      "postal_code": "60418",
      "property_id": "10074a3e3367b1b3",
      "province": "Illinois"
    },
    {
      "address": "6056 N Hermitage Avenue",
      "city": "Chicago",
      "demographic_age_25_to_29_years_percent": 0.1855670064687729,
      "estimate_political_lean": 2,
      "latitude": 41.99240493774414,
      "longitude": -87.67361450195312,
      "postal_code": "60660",
      "property_id": "1007951e7eda49fc",
      "province": "Illinois"
    },
    {
      "address": "15 Sanborn Avenue",
      "city": "Somerville",
      "demographic_age_25_to_29_years_percent": 0.1688244491815567,
      "estimate_political_lean": 1,
      "latitude": 42.3815803527832,
      "longitude": -71.09638977050781,
      "postal_code": "02143",
      "property_id": "1007bd9f52c957d2",
      "province": "Massachusetts"
    },
    {
      "address": "509 427 9 Avenue",
      "city": "San Diego",
      "demographic_age_25_to_29_years_percent": 0.23699915409088135,
      "estimate_political_lean": 3,
      "latitude": 32.70978546142578,
      "longitude": -117.15618896484376,
      "postal_code": "92101",
      "property_id": "1007c959e95f9ec5",
      "province": "California"
    },
    {
      "address": "501 50 Follen Street",
      "city": "Cambridge",
      "demographic_age_25_to_29_years_percent": 0.2378426194190979,
      "estimate_political_lean": 1,
      "latitude": 42.378116607666016,
      "longitude": -71.12126922607422,
      "property_id": "1007db26f8f68ac6",
      "province": "Massachusetts"
    },
    {
      "address": "369 Tower Hill Avenue",
      "city": "San Jose",
      "demographic_age_25_to_29_years_percent": 0.1506631225347519,
      "estimate_political_lean": 2,
      "latitude": 37.28091812133789,
      "longitude": -121.85599517822266,
      "postal_code": "95136",
      "property_id": "1007f48a7fdf5400",
      "province": "California"
    },
    {
      "address": "A2 552 Dorchester Avenue",
      "city": "Boston",
      "demographic_age_25_to_29_years_percent": 0.25737264752388,
      "estimate_political_lean": 1,
      "latitude": 42.33062744140625,
      "longitude": -71.056640625,
      "postal_code": "02127",
      "property_id": "1007f7cfac370a27",
      "province": "Massachusetts"
    },
    {
      "address": "1753 Quail Street",
      "city": "Lakewood",
      "demographic_age_25_to_29_years_percent": 0.15638363361358645,
      "estimate_political_lean": 2,
      "latitude": 39.74488830566406,
      "longitude": -105.12487030029295,
      "postal_code": "80215",
      "property_id": "1008071d41d70ca5",
      "province": "Colorado"
    }
  ],
  "error": "",
  "pagination": {
    "current_page": 1,
    "has_next_page": true,
    "has_previous_page": false,
    "page_total": 9116
  },
  "price_quote": false,
  "result_total": 911595,
  "time_ms": 516,
  "ui_info": {
    "country": "United States",
    "country_abbreviation": "US",
    "country_abbreviation_id": "c148472ce4bd39d",
    "country_abbreviation_link": "us",
    "country_slug": "united_states"
  }
}

Building the mailing file

Houski returns one row per parcel, with the address fields you need for an addressed admail or unaddressed admail piece from Canada Post, or for Marketing Mail and Every Door Direct Mail from the Postal Service in the United States. Three notes for political mail specifically.

First, Canada Post unaddressed admail is sold by postal walk. Sort your output by postal code before handing it to the printer, and most printers will route it directly into the right walk.

Second, Every Door Direct Mail is sold by carrier route in the same way. Sort by ZIP code, and the printer's presort software will assign the routes.

Third, Houski returns one record per parcel. For multi-unit buildings, you may want to roll up to the building level before printing. The address field is already standardised across provinces and states, so a group-by on the address gives you one piece per building.

For very large national campaigns, the bulk dataset export is faster than paginating the API. See datasets or contact us for a quote.

Sizing the market first

Before printing anything, run the same filter through the aggregate endpoint to see how many parcels match in a riding or district, a postal area or ZIP code, or a province or state. Sizing the universe in one query lets you set a print budget against a real list, not a guess.

For a small riding or a state house district you might run 8,000 to 15,000 strongly left or right pieces, with a few thousand pieces of persuasion mail layered into the swing pockets. For a national, state, or provincial mail program, the same filter scales into the millions.

Wrapping up

Political mail is one of the original data-targeted marketing channels. The estimate political lean column lets a campaign cut a national, state, or provincial list down to the parcels that match the message, before printing a single piece.

Sign up for the Houski API and the column is available on every property. Start at the quick-start guide.