Special Flood Hazard Area Maps


To View the Special Flood Hazard Area Maps

  1. Go to My Neighborhood.
  2. Type in your address in the search boxes. Be sure to type in your street number in the first box, street name in the second box, and the type (drive, circle, avenue, etc) in the third box using the drop down menu. Then click “Search.”
  3. Next, under the “Available Map Types” using the drop down menu select “FEMA-SFHA.” The FEMA Special Flood Hazard Area Map will then appear.
  4. You can use the zoom tool (with the – and + sign) above the map to zoom in or out for a different view of the map.
  5. Click on the Legend tab which shows how to read the FEMA Special Flood Hazard Areas/Zones in pink, green or yellow.  The zones indicate the flood hazard for the address searched.

Screenshot of My Neighborhood map application


Understanding the FEMA Zone Definitions

Zone A - “Areas with a 1% annual chance of flooding and a 26% chance of flooding over the life of a 30-year mortgage. Because detailed analyses are not performed for such areas, no depth or base flood elevations are shown within these zones.” Zone A is considered a high risk area and flood insurance is required for properties with a federally backed mortgage.

Zone AE - “The base floodplain where base flood elevations are provided. AE Zones are now used on new format Flood Insurance Rate Maps instead of A1-A30 Zones.” Zone AE is considered a high risk area and flood insurance is required for properties with a federally backed mortgage.

Zone AH - “Areas with a 1% annual chance of shallow flooding, usually in the form of a pond, with an average depth ranging form 1 to 3 feet. These areas have a 26% chance of flooding over the life of a 30-year mortgage. Base flood elevations derived from detailed analyses are shown as selected intervals within these zones.” Zone AH is considered a high risk area and flood insurance is required for properties with a federally backed mortgage. 

Need More Information?

For assistance and more information email the Stormwater Planning Division or call 703-324-5500, TTY 711.


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