Not an emergency service · In an emergency, call 911 PlansAccountAPI & MCPStore ↗Watt Street ↗
Independent · Est. 2026
THE PUBLIC RECORD · ORGANISED · SOS.CITY · SOS.cityThe public record of every place, organised.

Type a question, a place, a dataset or an agency. We answer from the record first, with sources. When we can't, Claude looks further.

VerifiedAPI · ArcGIS

FEMA National Flood Hazard Layer (NFHL) web services

Effective flood zones as GIS services, plus preliminary and pending map changes

FEMA National Flood Hazard Layer (NFHL) web services is published by FEMA for Los Angeles, California. It has an API (ArcGIS REST); its update schedule isn't stated, last updated 2026-10-16. Reuse: check terms. Check status: verified.

UpdatesNot stated
Last updated2026-10-16
ReuseCheck terms
Get itArcGIS REST

About this source

PublisherFEMA
Originalhttps://hazards.fema.gov/femaportal/wps/portal/NFHLWMS ↗
PlaceLos Angeles, California · federal
ShelfSafety and emergencies
FormatsArcGIS REST, WMS, WFS
Update rateNew data added continually
Located byPolygons
LicenceTerms of Use linked (not read); preliminary/pending data not for insurance rating
CheckedVerified: opened and matched by a person or our reviewer

Cite this source: FEMA, “FEMA National Flood Hazard Layer (NFHL) web services”, https://hazards.fema.gov/femaportal/wps/portal/NFHLWMS, last updated 2026-10-16. Listed by SOS.city at https://sos.city/source/363 (verified).

Use it in your product

# ArcGIS REST: query the layer
curl "https://hazards.fema.gov/arcgis/rest/services/public/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/363 -H "Authorization: Bearer sos_…"

Same shelf, same place