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Digital Flood Insurance Rate Map Database

Abstract: The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk
information and supporting data used to develop the risk data. The primary risk
classifications used are the 1-percent-annual-chance flood event, the
0.2-percent-annualchance flood event, and areas of minimal flood risk. The
DFIRM Database is derived from Flood Insurance Studies (FISs), previously
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Related URL
Description: Standard Digital Flood Insurance Rate Map (DFIRM) Database.
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Caption:  Flood Hazard Mapping
Geographic Coverage
Spatial coordinates   
  N: 76.63   S: 13.71   E: -61.48   W: -177.1

Data Set Citation
Dataset Originator/Creator: Federal Emergency Management Agency
Dataset Title: Digital Flood Insurance Rate Map Database
Dataset Release Date: 2000-05-03
Dataset Release Place: Washington, DC
Dataset Publisher: Federal Emergency Management Agency
Data Presentation Form: digital maps
Other Citation Details: 99009C19980915_metadata.htm
Online Resource:
Parent DIF
This description is a member of a collection. The collection is described in

Temporal Coverage
Start Date: 1998-07-01
Quality The DFIRM Database consists of countywide vector files and associated
attributes produced in conjunction with the hard copy FEMA FIRM. The published
effective FIRM and DFIRM maps are issued as the official designation of the
SFHAs. As such they are adopted by local communities and form the basis for
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Access Constraints None
Use Constraints The hardcopy FIRM and DFIRM and the accompanying FISs are the official
designation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the
purposes of the NFIP, changes to the flood risk information published by FEMA
may only be performed by FEMA and through the mechanisms established in the
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Data Set Progress
Originating Center
Data Center
Map Service Center, FEMA, U.S. Department of Homeland Security Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (800) 358-9616
Fax: (800) 358-9620
Email: mscservice at
Contact Address:
Map Service Center
P.O. Box 1038
United States
City: Jessup
Province or State: MD
Postal Code: 20794-1038
Country: USA
Distribution Media: Online
Distribution Format: zipped Microsoft Access Database
Fees: No fees

Distribution Media: Online
Distribution Format: ArcExplorer Project file, shapefiles
Fees: No fees
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2003-10-16
Last DIF Revision Date: 2017-08-23