Flood Zone Checker - Is Your Address in a Flood Zone?
Enter an address or click the map to check FEMA flood zone designation and risk level. See if flood insurance is required for any US location.
Look up the official FEMA flood zone for any address using data from the National Flood Hazard Layer (NFHL). The tool shows the flood zone designation, risk level, whether flood insurance is required, and base flood elevation where available. Toggle the flood map overlay to see flood zones across the entire area.
Free FEMA Flood Zone Lookup for Any US Address
Find out if a property is in a FEMA flood zone by entering the address or clicking on the map. The tool queries the official National Flood Hazard Layer (NFHL) and shows the flood zone designation, risk level, and whether flood insurance is required.
No account needed. All queries run directly from your browser to FEMA's public map service.
Who Uses This Tool?
Check flood risk before making an offer. Flood insurance can add $700-$4,000+ per year to your costs if the property is in a high-risk zone.
See your current flood zone and whether your area has been remapped. FEMA updates flood maps regularly, and your zone may have changed.
Quickly check flood zones for listings and client questions. Share results via a link.
Look up flood zones for quoting. See base flood elevations where available.
Check flood risk for apartments and rentals. Renters can also buy flood insurance through the NFIP.
Assess flood risk for potential acquisitions and development sites. Toggle the map overlay to see flood zones across an area.
Understanding FEMA Flood Zones
FEMA classifies areas into flood zones based on the likelihood and severity of flooding:
High-Risk Zones (Special Flood Hazard Areas)
- Zone A — 1% annual chance of flooding (100-year floodplain). No base flood elevation determined.
- Zone AE — Same as Zone A, but with base flood elevations determined by detailed study.
- Zone AH — Shallow flooding (1-3 feet) with a 1% annual chance. Typically ponding areas.
- Zone AO — Sheet flow flooding on sloped terrain with a 1% annual chance.
- Zone V / VE — Coastal flood zones with wave action hazard. The most dangerous flood zones.
Moderate to Low Risk Zones
- Zone X (shaded) — 0.2% annual chance of flooding (500-year floodplain). Moderate risk.
- Zone X (unshaded) — Outside the 500-year floodplain. Minimal flood risk.
- Zone D — Undetermined risk. No flood hazard analysis has been conducted.
Features
- Instant flood zone lookup — Enter any US address to see the FEMA flood zone designation
- Risk level and insurance info — See whether flood insurance is required for your zone
- Click-to-check — Click anywhere on the map to check that location
- Official FEMA flood map — Open the FEMA NFHL viewer centered on your location for detailed zone boundaries
- Base flood elevation — Shows BFE data where FEMA has determined it
- Shareable links — Generate a URL for any checked location
- Official data — Uses FEMA's National Flood Hazard Layer, the same source used by lenders
- Geolocation — Use your current location for instant results
About the Flood Data
This tool queries the FEMA National Flood Hazard Layer (NFHL), the official digital flood hazard database for the United States. The NFHL contains flood zone boundaries from Flood Insurance Rate Maps (FIRMs) and is the same data used by mortgage lenders, insurance companies, and local governments.
FEMA updates flood maps on a rolling basis as new studies are completed. Some areas may not yet be mapped, which will show as "No Data" in this tool. This does not mean there is no flood risk — it means FEMA has not yet studied the area.
For official flood zone determinations for lending purposes, contact a licensed flood zone determination company. This tool is for informational purposes only.
Frequently Asked Questions
How do I check if my house is in a flood zone?
Enter your address in the search box and click "Check Flood Zone." The tool queries FEMA's National Flood Hazard Layer and shows your flood zone designation, risk level, and whether flood insurance is required. You can also click directly on the map or use the "My Location" button.
What do FEMA flood zone letters mean?
Zones A, AE, AH, AO, V, and VE are high-risk Special Flood Hazard Areas (SFHAs) with a 1% annual chance of flooding. Zone X (shaded) is moderate risk with a 0.2% annual chance. Zone X (unshaded) is minimal risk. Zone D means risk is undetermined.
Is flood insurance required for my property?
If your property is in a Special Flood Hazard Area (any zone starting with A or V) and you have a federally backed mortgage, flood insurance is required by law. Even outside SFHAs, FEMA recommends flood insurance — over 25% of flood claims come from moderate and low-risk areas.
How accurate is this flood zone data?
This tool uses FEMA's official NFHL data, the same source used by lenders and insurance companies. Maps are updated regularly but may not reflect the most recent changes. For official determinations for lending, use a licensed flood zone determination company.
Is my data stored?
No. All queries run directly from your browser to FEMA's public map service. We never store your addresses or search history.
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