FEMA flood hazard zones around Dover, Delaware
Flood hazard zone shapes with their FEMA zone code, zone subtype, and Special Flood Hazard Area flag, from FEMA's National Flood Hazard Layer, for the City of Dover and about 1.5 km around it.
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Flood maps are a U.S. federal government work, and FEMA says its material may be copied and distributed without permission. The NFHL service was reachable on 2026-11-07 and has empty license fields. Please credit it with the line below.
- Published by
- Federal Emergency Management Agency (FEMA)
- Source
- License
- Public domain (U.S. government work)
- Credit line
FEMA National Flood Hazard Layer. Not an official flood zone determination.- Updated
- Monthly
- Covers
- Effective flood maps on the fetch date (fetched_date on each row).
- Area
- Dover, Delaware area: longitude -75.6026 to -75.4257, latitude 39.0873 to 39.2254.
Fields
flood_zones
batch_id, zone_key, zone, subtype, sfha, geometry_json, min_lon, min_lat, max_lon, max_lat, source_url, fetched_date, license_id, license_url, attribution, redistributable
Downloads and API
Files are saved each morning. Earlier copies, one for each day the data changed, are listed at fema-nfhl-flood-zones-dover/versions.
Or page through the rows in the OpenDover API. No key is needed.
https://api.opendover.org/v1/datasets/fema-nfhl-flood-zones-dover/rows?table=flood_zones
You can also see this data in answers on AskDover.