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
- 6 counties have no digital FIRM in the NFHL (listed below). Points there come back
"mapped": false. - 3 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 Laramie County (56021C), last revised 2007-01-17.
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.
curl -sG https://api.floodzoneapi.com/api/v1/flood/zone \
-H "Authorization: Bearer $FZA_KEY" \
-d lat=41.70359 -d lon=-106.93315{
"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
| Map | DFIRM ID | ID type | Panels | Newest panel | Oldest panel | Over 10 years old | LOMRs in effect |
|---|---|---|---|---|---|---|---|
| Albany County | 56001C | County | 106 | 2011-06-16 | 2011-06-16 | 106 | 2 |
| Big Horn County | 56003C | County | 81 | 2014-02-19 | 2014-02-19 | 81 | 1 |
| Campbell County | 56005C | County | 155 | 2008-01-02 | 2008-01-02 | 155 | 6 |
| Carbon County | 56007C | County | 316 | 2024-12-20 | 2024-12-20 | 0 | 0 |
| Converse County | 56009C | County | 96 | 2009-11-04 | 2009-11-04 | 96 | 0 |
| Fremont County | 56013C | County | 217 | 2014-02-05 | 2011-09-16 | 217 | 2 |
| Goshen County | 56015C | County | 118 | 2022-06-01 | 2022-06-01 | 0 | 0 |
| Laramie County | 56021C | County | 128 | 2007-01-17 | 2007-01-17 | 128 | 18 |
| Lincoln County | 56023C | County | 133 | 2011-11-16 | 2011-11-16 | 133 | 0 |
| Natrona County | 56025C | County | 148 | 2015-05-18 | 2015-05-18 | 148 | 3 |
| Park County | 56029C | County | 177 | 2010-06-18 | 2010-06-18 | 177 | 0 |
| Sheridan County | 56033C | County | 102 | 2014-01-16 | 2014-01-16 | 102 | 1 |
| Teton County | 56039C | County | 140 | 2015-09-16 | 2015-09-16 | 140 | 9 |
| Town of Hulett | 560016 | Community-numbered | 5 | 2007-09-28 | 2007-09-28 | 5 | 0 |
| Town of Kaycee | 560028 | Community-numbered | 2 | 2008-02-20 | 2008-02-20 | 2 | 0 |
| Town of Moorcroft | 560077 | Community-numbered | 1 | 2007-02-02 | 2007-02-02 | 1 | 0 |
| Uinta County | 56041C | County | 74 | 2010-02-17 | 2010-02-17 | 74 | 4 |
| Washakie County | 56043C | County | 62 | 2009-03-02 | 2009-03-02 | 62 | 4 |
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.
- Hot Springs County (56017)
- Niobrara County (56027)
- Platte County (56031)
- Sublette County (56035)
- Sweetwater County (56037)
- Weston County (56045)
Source: FEMA NFHL layers 1, 3 and 22 and the Census Bureau county gazetteer, computed September 29, 2026. All states ยท API reference