Enter any Iowa address to see its FEMA flood zone designation
Iowa experiences a mixed flood risk, with a significant number of both flood and flash flood events recorded over the past 30 years. During this period, NOAA data indicates 4,756 flood events resulting in 8 deaths, alongside 2,606 flash flood events that caused 10 fatalities.
Recent federal disaster declarations highlight the recurring threat of severe storms, flooding, straight-line winds, and tornadoes impacting the state. These declarations, particularly those from June 2024, underscore the dynamic and often severe weather patterns that contribute to flood risk across Iowa.
National Flood Insurance Program (NFIP) data shows that Zone A, typically representing areas with higher flood risk, has the highest number of claims at 9,137, with over $206 million paid out. However, Zone X, which includes both shaded and unshaded areas, also shows a substantial number of claims. Notably, the average claim payout in Zone X ($30,711) and X_SHADED ($29,713) is higher than in Zone A ($22,586), suggesting that flood damage can occur in areas not always perceived as high-risk, and insurance may be advisable for residents in various flood zones.
Summary generated from FEMA disaster declarations, NOAA storm events, and NFIP claim data. Updated quarterly.
Source: OpenFEMA NFIP Claims, Policies, and Disaster Declarations data.
Iowa has received 1,926 federal disaster declarations, including 729 flood and coastal storm declarations.
FEMA designates flood zones across Iowa using the following classifications:
AE High Risk — 1% annual chance of flooding (100-year floodplain). Insurance required for federal mortgages.
VE Very High Risk — Coastal flooding with wave action. Strictest building codes.
X (Shaded) Moderate Risk — 500-year floodplain. Insurance recommended.
X Low Risk — Outside major floodplains. Insurance optional but advisable — from 2014 to 2024, nearly one-third of NFIP claims came from outside high-risk zones.
Properties in Iowa FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance through the National Flood Insurance Program (NFIP).
The average NFIP premium in Iowa is approximately $710 per year. Rates vary significantly based on flood zone, building elevation, and coverage amount.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from properties outside the high-risk Special Flood Hazard Area. Iowa residents can purchase flood insurance through the NFIP or private insurers.
Visit FloodSmart.gov to find an agent and get a quote.
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