About Check My Flood Zone

Last updated: 2026-11-12

Published by checkmyfloodzone.com.

CheckMyFloodZone helps you look up a property's FEMA flood zone by address using public map and geocoding data.

Who publishes this site

CheckMyFloodZone is operated by Small Tiger LLC (trade name Small Tiger Group), a Wyoming limited liability company. Visit Small Tiger Group.

How the lookup works

The lookup uses the US Census Geocoder to locate an address, then checks the FEMA National Flood Hazard Layer (NFHL) for mapped flood zone information. If the Census geocoder cannot match an address, the lookup may try the OpenStreetMap Nominatim and Photon geocoders, and if the FEMA service is unavailable it may use the Esri Living Atlas copy of the FEMA flood hazard data. Maps use base geography from US Census TIGERweb.

Contact

For questions or privacy requests, email privacy@checkmyfloodzone.com.