Federal Emergency Management Agency Q3

Date(s): Coverage Availability/Geographic Extent: Footprint: Source(s):
1990 Coverage limited to mapped counties County FEMA

Data Access

Direct Download

The full Federal Emergency Management Agency Q3 data set can be downloaded directly.

Download the file here:


Data Search & Download

Use our online data search & download to specify the geographic area for which you would like to download this data set.

Data Download

Data Details

Available Formats: Shapefile
Derivative Data: None
Known Issues: Age, Dataset was generated in mid 1980s, Most counties have never been updated. Incomplete fro state of Texas 133 out of 254 counties
Recommended Uses: Basemap
Spatial Reference:

EPSG 4269


The FEMA Digital Q3 Flood Data were developed by scanning the existing Flood Insurance Rate Map (FIRM) hardcopy and capturing a thematic overlay of flood risks. Digital Q3 Flood Data files contain only certain features from the FIRM hardcopy in effect at the time of scanning and do not replace the existing FIRM hardcopy maps.

The maps displayed on this site should be considered an advisory tool for general hazard awareness, education, and flood plain management. The flood hazard maps displayed on this site are not the legal document to be used when making a single site flood hazard determination.