VerifiedAPI · ArcGISBy address

FEMA National Flood Hazard Layer (NFHL) - effective

Name: FEMA National Flood Hazard Layer (NFHL) - effective
Creator: FEMA

Official flood zone at an address (e.g. Zone AE / X), base flood elevations, and FIRM panels

FEMA National Flood Hazard Layer (NFHL) - effective is published by FEMA for United States. It has an API (ArcGIS REST); its update schedule isn't stated. Reuse: check terms. Check status: verified.

UpdatesNot stated

Last updatedNot stated

ReuseCheck terms

Get itArcGIS REST

About this source

Publisher	FEMA
Original	https://hazards.fema.gov/femaportal/resources/flood_map_svc.htm ↗
Place	United States · federal
Shelf	Water
Formats	ArcGIS MapServer (WMS/REST); shapefile / geodatabase…
Update rate	As new data becomes available; removed once effective
Located by	Parcel-scale polygon
Licence	not stated
Checked	Verified: opened and matched by a person or our reviewer

Cite this source: FEMA, “FEMA National Flood Hazard Layer (NFHL) - effective”, https://hazards.fema.gov/femaportal/resources/flood_map_svc.htm. Listed by SOS.city at https://sos.city/source/626 (verified).

Use it in your product

# ArcGIS REST: query the layer
curl "https://hazards.fema.gov/arcgis/rest/services/PrelimPending/Prelim_NFHL/MapServer/query?where=1%3D1&outFields=*&resultRecordCount=5&f=json"

Endpoint as listed by the publisher.

# Through SOS.city: this source and its neighbours, with publisher, licence and check status
curl https://api.sos.city/v1/sources/626 -H "Authorization: Bearer sos_…"