Free Flood Zone Checker
Data version: Q2 2026 · Last updated 2026-05-13
TL;DR. Is your property in a FEMA flood zone? Enter any U.S. address to check your flood zone designation instantly using official FEMA flood maps. Results include your exact zone code (X, A, AE, V, VE, etc.), whether flood insurance is likely required, and the flood risk impact on your Buildability Score.
FEMA flood zones explained
Zone X: minimal flood hazard. No insurance required. Zone B/Shaded X: moderate hazard (0.2% annual chance). Insurance optional but recommended. Zone A: 1% annual chance flood (100-year floodplain). Insurance typically required for federally-backed mortgages. Zone AE: same as A but with detailed elevation study available. Zone V/VE: coastal high-hazard with velocity waves. Highest insurance cost and strict building elevation rules. Zone D: undetermined flood hazard.
Why flood zone matters
Flood zone affects your insurance cost (can range from $500/year in Zone X to $5,000+/year in Zone V), your building code requirements (elevated foundations, flood vents, flood-resistant materials), and your property resale value. A re-mapping from Zone X to Zone AE can reduce property value by 10-15%. Buildability™ checks the latest FEMA flood map for your specific address.
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