Download FEMA Flood Hazard Maps and GIS Data for Washington
About the data
FEMA Flood Hazard Rate Maps are being modernized! The new maps are referred to as the Digital Flood Insurance Rate Maps (DFIRMs).
Currently we only have some counties available, but other shapefiles will be added as they are received.
The Dept. of Ecology distributes FEMA flood hazard data as a service to public and private
stakeholders in Washington State. Ecology does not produce or maintain FEMA Flood Insurance Rate Maps and
therefore does not accept any liability for the accuracy, completeness, or currentness of FEMA flood
hazard data or maps. To obtain an official FEMA Flood Insurance Rate Map go to the
FEMA Map Service Center.
Please note that our GIS data, while available free of charge, is covered by
Ecology’s Conditions of Use Statement. Please view the conditions on the
Site Information Page.
Download DFIRM GIS data:
NOTE: DFIRMs are official, except those marked as “Preliminary”.
Download Q3 GIS Data:
Q3 flood data are the old data which are available for the entire state. Refer to these if DFIRMs are not available for your county of interest.