Flood map coverage in Alaska

FEMA's National Flood Hazard Layer holds 950 FIRM panels for Alaska from 16 digital flood map databases, reaching 11 of its 30 counties. Computed September 29, 2026.

What to expect from lookups here

• 19 counties have no digital FIRM in the NFHL (listed below). Points there come back "mapped": false.
• 9 of the maps are community-numbered, so parts of the counties they sit in may have no digital map.
• The map that has gone longest without a new panel is City of Aniak (020033), last revised 2006-09-29.

A real lookup in Alaska

The point is the Census internal point of Kenai Peninsula Borough, the county with Alaska's most recently effective FIRM panel. FEMA's digital map has no flood hazard area there, so the answer says unmapped instead of guessing a zone. Recorded September 29, 2026.

curl -sG https://api.floodzoneapi.com/api/v1/flood/zone \
  -H "Authorization: Bearer $FZA_KEY" \
  -d lat=60.36077 -d lon=-152.05264

{
  "query": {
    "lat": 60.36077,
    "lon": -152.05264
  },
  "location": {
    "lat": 60.36077,
    "lon": -152.05264,
    "geocoder": null,
    "precision": "input_coordinates",
    "matched_address": null,
    "candidates": null,
    "county": null,
    "county_fips": null,
    "state": null
  },
  "flood_zone": {
    "mapped": false,
    "zone": null,
    "subtype": null,
    "description": "FEMA's digital flood map (NFHL) has no flood hazard area at this point. The area may have only paper maps, no FEMA map, or lie outside the United States. This is not the same as Zone X.",
    "sfha": null,
    "static_bfe": null,
    "depth": null,
    "dfirm_id": null,
    "polygon_id": null,
    "at_zone_boundary": false,
    "other_zones": []
  },
  "firm_panel": null,
  "source": {
    "dataset": "FEMA National Flood Hazard Layer (NFHL)",
    "service": "https://hazards.fema.gov/arcgis/rest/services/public/NFHL/MapServer",
    "layers": [
      {
        "id": 28,
        "name": "Flood Hazard Zones"
      },
      {
        "id": 3,
        "name": "FIRM Panels"
      }
    ],
    "query_point": {
      "lat": 60.36077,
      "lon": -152.05264
    },
    "queried_at": "2026-09-29T08:42:36Z",
    "cached": false,
    "cache_ttl_seconds": 86400
  },
  "notice": "Informational. This is the zone shown on FEMA's effective flood map (NFHL) at this point. It is not a Standard Flood Hazard Determination (FEMA Form 086-0-32), a prediction of flood risk, or an insurance quote, and it does not reflect a Letter of Map Amendment issued for a single structure."
}

Every digital flood map in Alaska

Counties with no digital FIRM in the NFHL

No digital flood map in the NFHL links to these counties (Census county FIPS in brackets). Addresses here return "mapped": false; FEMA may still have paper maps for them.

• Aleutians East Borough (02013)
• Aleutians West Census Area (02016)
• Bristol Bay Borough (02060)
• Chugach Census Area (02063)
• Copper River Census Area (02066)
• Denali Borough (02068)
• Dillingham Census Area (02070)
• Haines Borough (02100)
• Hoonah-Angoon Census Area (02105)
• Kodiak Island Borough (02150)
• Kusilvak Census Area (02158)
• North Slope Borough (02185)
• Northwest Arctic Borough (02188)
• Petersburg Borough (02195)
• Prince of Wales-Hyder Census Area (02198)
• Skagway Municipality (02230)
• Southeast Fairbanks Census Area (02240)
• Wrangell City and Borough (02275)
• Yakutat City and Borough (02282)

Source: FEMA NFHL layers 1, 3 and 22 and the Census Bureau county gazetteer, computed September 29, 2026. All states · API reference