Average score flood in Illinois, United States

United States
Illinois
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Score flood description

A rating from 0 to 10 of how often the area around a property floods, where higher numbers mean the surrounding area floods less often. It reflects the area, not the individual home.

A low score does not always mean this home will flood. It might sit on higher ground and stay dry, but a nearby flood plain can still affect it a great deal, because flooding damages surrounding roads, utilities, and services and drags on value and insurance across the whole area. Use a low score as a prompt to look into whether this particular home is genuinely at risk.

  • 0-2: Very high flood exposure - The surrounding area floods readily
  • 3-4: High flood exposure - The area sees significant flooding
  • 5-6: Moderate flood safety - Some flood-prone conditions nearby
  • 7-8: High flood safety - The area floods only rarely
  • 9-10: Very high flood safety - The surrounding area is very unlikely to flood

In the United States this is the Joint Research Centre's river flood depths alone, so coastal flooding is not counted. Hawaii has no score.

Average score flood for residential properties in Illinois

MedianMeanMode
From 4,923,381 homes
From 4,923,381 homes
From 4,923,381 homes

Data updated November 14, 2026

Average score flood for residential for cities in Illinois

Score flood highest firstScore flood lowest first
LocationMedianMeanMode
Abingdon
From 1,530 homes
From 1,530 homes
From 1,530 homes
Abington
From 121 homes
From 121 homes
From 121 homes
Adair
From 127 homes
From 127 homes
From 127 homes
Adams
From 44 homes
From 44 homes
From 44 homes
Adams County
From 5,213 homes
From 5,213 homes
From 5,213 homes
Addieville
From 161 homes
From 161 homes
From 161 homes
Addison
From 18,372 homes
From 18,372 homes
From 18,372 homes
Adeline
From 61 homes
From 61 homes
From 61 homes
Aetna
From 148 homes
From 148 homes
From 148 homes
Afton
From 338 homes
From 338 homes
From 338 homes
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