HazardFacts

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Natural hazard risk by county in Iowa

3 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
Johnson CountyRelatively Moderate
Linn CountyRelatively Moderate
Polk 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.