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Flood Insurance Rate Maps (FIRMs)


The Federal Emergency Management Agency (FEMA) creates and provides authoritative data related to flood insurance. Flood Insurance Rate Maps (FIRMs) data, where available digitally, can be found on the official FEMA’s National Flood Hazard Layer.

Looking for more than just FIRMs?  Visit Search All Products to access the full range of flood risk products for your community.

Purpose: To provide flood hazards information to the public.

Supplemental Information:

  • The DFIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper Flood Insurance Rate Maps (FIRMs)
  • FEMA Flood Maps can be obtained from the the FEMA Flood Map Service Center (MSC)
  • The National Flood Hazard Layer (NFHL) is a digital database that contains flood hazard mapping data from FEMA’s National Flood Insurance Program (NFIP). This map data is derived from Flood Insurance Rate Map (FIRM) databases and Letters of Map Revision (LOMRs).The NFHL is for community officials and members looking to view effective regulatory flood hazard information in a Geographic Information Systems (GIS) application.
  • FEMA has additional information on the National Flood Insurance Program and Flood Hazard Mapping.
Using GIS Data on this site

GIS Data downloaded from this site generally requires GIS software to view. Click here for a list of GIS Data Viewers

GIS data available on this website is provided AS IS - please read the GIS Data Portal Terms of Use

Data Field Descriptions

GIS Source Information
Database Name:
Feature Class Name:
Feature Dataset Name (if applicable):
Reference Date:
Accuracy: Other
Update Frequency: As Needed
Access Constraints:None

Contact Information

Federal Emergency Management Agency (FEMA)
FEMA Map Information eXchange

(877) FEMA MAP (1-877-336-2627)

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