HazardFacts

All states › Illinois

Natural hazard risk by county in Illinois

14 county pages so far. Overall ratings from the FEMA National Risk Index v1.20 (December 2025), which compares each county with all US counties.

Open a county for its FEMA ratings for each hazard, flood insurance and claims records, disaster declarations and tornado history.

CountyFEMA overall risk rating
Champaign CountyRelatively Moderate
Cook CountyVery High
DuPage CountyRelatively High
Kane CountyRelatively High
Kankakee CountyRelatively Moderate
LaSalle CountyRelatively Moderate
Lake CountyRelatively High
Lee CountyRelatively Low
Madison CountyRelatively Moderate
McHenry CountyRelatively Moderate
McLean CountyRelatively Moderate
St. Clair CountyRelatively High
Will CountyRelatively High
Winnebago CountyRelatively Moderate

This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s). This product uses the FEMA OpenFEMA API, but is not endorsed by FEMA.