Flood Zone API Get a free key

Flood map coverage in Wyoming

FEMA's National Flood Hazard Layer holds 2,061 FIRM panels for Wyoming from 18 digital flood map databases, reaching 17 of its 23 counties. Computed September 29, 2026.

2,061FIRM panels
79%took effect before September 29, 2016
2024-12-20newest panel (56007C3918C)
50LOMRs in effect

What to expect from lookups here

A real lookup in Wyoming

The point is the Census internal point of Carbon County, the county with Wyoming's most recently effective FIRM panel. FEMA's map puts it in zone X (area of minimal flood hazard). Recorded September 29, 2026.

Request
curl -sG https://api.floodzoneapi.com/api/v1/flood/zone \
  -H "Authorization: Bearer $FZA_KEY" \
  -d lat=41.70359 -d lon=-106.93315
Response 200
{
  "query": {
    "lat": 41.70359,
    "lon": -106.93315
  },
  "location": {
    "lat": 41.70359,
    "lon": -106.93315,
    "geocoder": null,
    "precision": "input_coordinates",
    "matched_address": null,
    "candidates": null,
    "county": null,
    "county_fips": null,
    "state": null
  },
  "flood_zone": {
    "mapped": true,
    "zone": "X",
    "subtype": "AREA OF MINIMAL FLOOD HAZARD",
    "description": "Area of minimal flood hazard. Outside the Special Flood Hazard Area.",
    "sfha": false,
    "static_bfe": null,
    "depth": null,
    "dfirm_id": "56007C",
    "polygon_id": "56007C_12200",
    "at_zone_boundary": false,
    "other_zones": []
  },
  "firm_panel": {
    "panel": "56007C2160C",
    "effective_date": "2024-12-20",
    "panel_type": "Countywide, Panel Printed",
    "dfirm_id": "56007C",
    "other_panels": []
  },
  "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": 41.70359,
      "lon": -106.93315
    },
    "queried_at": "2026-09-29T08:38:05Z",
    "cached": true,
    "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 Wyoming

MapDFIRM IDID typePanelsNewest panelOldest panelOver 10 years oldLOMRs in effect
Albany County56001CCounty1062011-06-162011-06-161062
Big Horn County56003CCounty812014-02-192014-02-19811
Campbell County56005CCounty1552008-01-022008-01-021556
Carbon County56007CCounty3162024-12-202024-12-2000
Converse County56009CCounty962009-11-042009-11-04960
Fremont County56013CCounty2172014-02-052011-09-162172
Goshen County56015CCounty1182022-06-012022-06-0100
Laramie County56021CCounty1282007-01-172007-01-1712818
Lincoln County56023CCounty1332011-11-162011-11-161330
Natrona County56025CCounty1482015-05-182015-05-181483
Park County56029CCounty1772010-06-182010-06-181770
Sheridan County56033CCounty1022014-01-162014-01-161021
Teton County56039CCounty1402015-09-162015-09-161409
Town of Hulett560016Community-numbered52007-09-282007-09-2850
Town of Kaycee560028Community-numbered22008-02-202008-02-2020
Town of Moorcroft560077Community-numbered12007-02-022007-02-0210
Uinta County56041CCounty742010-02-172010-02-17744
Washakie County56043CCounty622009-03-022009-03-02624
Dates are panel effective dates (YYYY-MM-DD). "Placeholder" means FEMA's record carries a non-date such as 9999-09-09. "Over 10 years old" counts panels effective before September 29, 2016. "LOMRs in effect" are Letters of Map Revision not yet folded into a new FIRM. The DFIRM ID appears in responses as flood_zone.dfirm_id and firm_panel.dfirm_id.

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.

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