Reference only. Data sourced from HUD/FHFA (2025). This site is a private entity and not affiliated with any government agency.
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Flood risk by county

National Risk Index scores attached to every county calculator.

CountyRiskScoreDetails
Adams CountyHigh79View
Alexander CountyModerate32View
Bond CountyVery High82View
Boone CountyVery High80View
Brown CountyVery High98View
Bureau CountyHigh73View
Calhoun CountyVery High82View
Carroll CountyVery High98View
Cass CountyVery High98View
Champaign CountyModerate33View
Christian CountyVery High90View
Clark CountyVery High98View
Clay CountyVery High98View
Clinton CountyVery High82View
Coles CountyModerate33View
Cook CountyModerate33View
Crawford CountyVery High98View
Cumberland CountyModerate33View
De Witt CountyVery High98View
Dekalb CountyModerate33View
Douglas CountyVery High98View
Dupage CountyModerate33View
Edgar CountyVery High98View
Edwards CountyVery High98View
Effingham CountyModerate41View
Fayette CountyVery High98View
Ford CountyVery High98View
Franklin CountyVery High98View
Fulton CountyHigh75View
Gallatin CountyVery High98View
Greene CountyVery High98View
Grundy CountyModerate33View
Hamilton CountyVery High98View
Hancock CountyModerate45View
Hardin CountyVery High98View
Henderson CountyModerate30View
Henry CountyModerate38View
Iroquois CountyVery High98View
Jackson CountyModerate32View
Jasper CountyVery High98View
Jefferson CountyHigh69View
Jersey CountyVery High82View
Jo Daviess CountyVery High98View
Johnson CountyModerate32View
Kane CountyModerate33View
Kankakee CountyHigh56View
Kendall CountyModerate33View
Knox CountyModerate47View
Lake CountyModerate33View
Lasalle CountyHigh73View
Lawrence CountyVery High98View
Lee CountyModerate39View
Livingston CountyHigh77View
Logan CountyHigh61View
Macon CountyModerate39View
Macoupin CountyVery High82View
Madison CountyVery High82View
Marion CountyModerate32View
Marshall CountyHigh75View
Mason CountyVery High98View
Massac CountyHigh74View
Mcdonough CountyHigh62View
Mchenry CountyModerate33View
Mclean CountyLow28View
Menard CountyVery High88View
Mercer CountyModerate38View
Monroe CountyVery High82View
Montgomery CountyVery High98View
Morgan CountyModerate54View
Moultrie CountyVery High98View
Ogle CountyVery High80View
Peoria CountyHigh75View
Perry CountyVery High98View
Piatt CountyModerate33View
Pike CountyVery High98View
Pope CountyVery High98View
Pulaski CountyVery High98View
Putnam CountyHigh73View
Randolph CountyVery High98View
Richland CountyVery High98View
Rock Island CountyModerate38View
Saline CountyVery High98View
Sangamon CountyVery High88View
Schuyler CountyVery High98View
Scott CountyModerate54View
Shelby CountyVery High98View
St. Clair CountyVery High82View
Stark CountyHigh75View
Stephenson CountyModerate46View
Tazewell CountyHigh75View
Union CountyVery High98View
Vermilion CountyModerate38View
Wabash CountyVery High98View
Warren CountyVery High98View
Washington CountyVery High98View
Wayne CountyVery High98View
White CountyVery High98View
Whiteside CountyVery High89View
Will CountyModerate33View
Williamson CountyModerate32View
Winnebago CountyVery High80View
Woodford CountyHigh75View