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The FEMA Flood Map Service Center (MSC) is the official online location to find all flood hazard mapping products created under the National Flood Insurance Program, including your community’s flood map.
The National Flood Hazard Layer (NFHL) is a geospatial database that contains current effective flood hazard data. FEMA provides the flood hazard data to support the National Flood Insurance Program. You can use the information to better understand your level of flood risk and type of flooding.
Use the MSC to find your official flood map, access a range of other flood hazard products, and take advantage of tools for better understanding flood risk. FEMA flood maps are continually updated through a variety of processes.
Flood maps, known officially as Flood Insurance Rate Maps, show areas of high- and moderate- to low-flood risk. They are shown as a series of zones. Communities use the maps to set minimum building requirements for coastal areas and floodplains; lenders use them to determine flood insurance requirements.
The NFHL can be viewed via online services or through the FEMA GeoPlatform. More information about the ways to access NFHL data is available here. To order kits of the entire USA for the NFHL, please contact customer service at (877) 336-2627. Select a State, District, or Territory.
Explore FEMA's interactive ArcGIS Web Application to assess flood risks and scenarios in the United States.
FEMA's GIS flood map services are available through FEMAs GeoPlatform, an ArcGIS Online portal containing a variety of FEMA-related data. To view the NFHL on the FEMA GeoPlatform go to NFHL on FEMA GeoPlatform .
The FEMA Floodplain Management Data Hub serves as a one-stop shop curating floodplain management-specific data and applications for use by all to help make communities across the United States and territories safer from flooding.
The FEMA Flood Map Service Center (MSC) is the official source for National Flood Insurance Program flood hazard information. Use the MSC to find: Your official flood map. FIRM panels. FIS reports. Letter of Map Changes (LOMC) National Flood Hazard Layer data. View All MSC Tools.
Flood maps are used by the NFIP and FEMA to assess mandatory purchase requirements, building code requirements and floodplain management requirements. Along with Flood Insurance Rate Maps (FIRMs), they also help communities understand their collective risk.