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DeKalb, Illinois Flood Zones

Check an Address in DeKalb

Enter any address in DeKalb, Illinois to see its FEMA flood zone

Flood Risk in DeKalb, Illinois

DeKalb has a population of 40,290 residents. Like many communities in Illinois, properties in DeKalb may be located in various FEMA flood zones ranging from high-risk Special Flood Hazard Areas to low-risk zones.

Use the address lookup above to check the specific flood zone for any property in DeKalb. Results come directly from FEMA's National Flood Hazard Layer (NFHL).

Flood Zone Types in DeKalb

FEMA assigns flood zone designations to areas in DeKalb, Illinois:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

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Flood Insurance in DeKalb

Properties in DeKalb that are in FEMA Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even in low-risk zones, flood insurance is recommended — over 20% of NFIP claims come from outside high-risk areas. Visit FloodSmart.gov for quotes.

View all Illinois flood zone data →