Flood map coverage in Colorado
FEMA's National Flood Hazard Layer holds 4,107 FIRM panels for Colorado from 46 digital flood map databases, reaching 45 of its 64 counties. Computed September 29, 2026.
4,107FIRM panels
55%took effect before September 29, 2016
2026-06-10newest panel (08109C1020A)
585LOMRs in effect
What to expect from lookups here
- 19 counties have no digital FIRM in the NFHL (listed below). Points there come back
"mapped": false. - 4 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 Routt County (08107C), last revised 2005-02-04.
- 4 panels carry a placeholder effective date in FEMA's data; for points on those panels
firm_panel.effective_dateisnull.
A real lookup in Colorado
The point is the Census internal point of Saguache County, the county with Colorado'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=38.03165 -d lon=-106.23467{
"query": {
"lat": 38.03165,
"lon": -106.23467
},
"location": {
"lat": 38.03165,
"lon": -106.23467,
"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": "08109C",
"polygon_id": "08109C_315",
"at_zone_boundary": false,
"other_zones": []
},
"firm_panel": {
"panel": "08109C1015A",
"effective_date": "2026-06-10",
"panel_type": "Countywide, Not Printed",
"dfirm_id": "08109C",
"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": 38.03165,
"lon": -106.23467
},
"queried_at": "2026-09-29T08:37:33Z",
"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 Colorado
| Map | DFIRM ID | ID type | Panels | Newest panel | Oldest panel | Over 10 years old | LOMRs in effect |
|---|---|---|---|---|---|---|---|
| Adams County | 08001C | County | 155 | 2021-12-02 | 2007-03-05 | 121 | 55 |
| Arapahoe County | 08005C | County | 144 | 2024-04-11 | 2010-12-17 | 66 | 71 |
| Archuleta County | 08007C | County | 76 | 2023-10-05 | 2009-09-25 | 65 | 2 |
| Boulder County | 08013C | County | 156 | 2024-10-24 | 2012-12-18 | 34 | 42 |
| Chaffee County | 08015C | County | 72 | 2017-12-07 | 2017-12-07 | 0 | 3 |
| City and County of Broomfield | 085073 | Community-numbered | 22 | 2019-08-15 | 2004-08-18 | 17 | 21 |
| City and County of Denver | 080046 | Community-numbered | 92 | 2024-07-03 | 2005-11-17 | 66 | 22 |
| Clear Creek County | 08019C | County | 36 | 2019-12-20 | 2007-03-19 | 24 | 0 |
| Delta County | 08029C | County | 86 | 2010-08-19 | 2010-08-19 | 86 | 3 |
| Douglas County | 08035C | County | 176 | 2021-12-02 | 2005-09-30 | 159 | 56 |
| Eagle County | 08037C | County | 120 | 2026-01-09 | 2007-12-04 | 101 | 11 |
| El Paso County | 08041C | County | 206 | 2018-12-07 | 1997-03-17 | 4 | 39 |
| Elbert County | 08039C | County | 57 | 2011-03-17 | 2011-03-17 | 57 | 3 |
| Fremont County | 08043C | County | 67 | 2012-07-03 | 2007-09-19 | 67 | 4 |
| Garfield County | 080205 | Community-numbered | 6 | 2006-08-02 | 2006-08-02 | 3 | 0 |
| Gilpin County | 08047C | County | 16 | 2022-04-06 | 2022-04-06 | 0 | 1 |
| Grand County | 08049C | County | 60 | 2008-01-02 | 2008-01-02 | 60 | 4 |
| Gunnison County | 08051C | County | 116 | 2013-05-16 | 2013-05-16 | 116 | 1 |
| Hinsdale County | 08053C | County | 22 | 2024-09-12 | 1987-09-30 | 13 | 0 |
| Jefferson County | 08059C | County | 132 | 2022-08-02 | 2014-02-05 | 110 | 78 |
| La Plata County | 08067C | County | 118 | 2024-04-25 | 2010-08-19 | 49 | 0 |
| Larimer County | 08069C | County | 172 | 2021-01-15 | 2006-12-19 | 149 | 75 |
| Las Animas County | 08071C | County | 135 | 2019-08-28 | 2019-08-28 | 0 | 1 |
| Lincoln County | 08073C | County | 57 | 2024-09-12 | 2024-09-12 | 0 | 0 |
| Logan County | 08075C | County | 70 | 2021-05-04 | 2016-05-16 | 38 | 0 |
| Mesa County | 08077C | County | 115 | 2012-10-16 | 2010-07-06 | 115 | 12 |
| Mineral County | 08079C | County | 40 | 2025-07-08 | 2025-07-08 | 0 | 0 |
| Montezuma County | 08083C | County | 88 | 2008-09-26 | 2008-09-26 | 88 | 0 |
| Montrose County | 08085C | County | 111 | 2012-01-06 | 2012-01-06 | 111 | 3 |
| Morgan County | 08087C | County | 51 | 2021-05-18 | 2018-04-04 | 0 | 1 |
| Ouray County | 08091C | County | 39 | 2024-01-11 | 2024-01-11 | 0 | 0 |
| Park County | 08093C | County | 56 | 2009-12-18 | 2009-12-18 | 56 | 1 |
| Pitkin County | 08097C | County | 104 | 2019-08-15 | 2019-08-15 | 0 | 5 |
| Prowers County | 08099C | County | 60 | 2016-04-19 | 2016-04-19 | 59 | 0 |
| Pueblo County | 08101C | County | 230 | 2019-08-15 | 2019-08-15 | 0 | 12 |
| Rio Blanco County | 08103C | County | 108 | 2021-12-02 | 2021-12-02 | 0 | 0 |
| Rio Grande County | 08105C | County | 48 | 2011-09-02 | 2011-09-02 | 48 | 0 |
| Routt County | 08107C | County | 85 | 2005-02-04 | 2005-02-04 | 85 | 16 |
| Saguache County | 08109C | County | 85 | 2026-06-10 | 2026-06-10 | 0 | 0 |
| San Juan County | 08111C | County | 21 | 2023-05-09 | 2023-05-09 | 0 | 0 |
| Sedgwick County | 08115C | County | 34 | 2021-05-18 | 2021-05-18 | 0 | 0 |
| Summit County | 08117C | County | 103 | 2018-11-16 | 2011-11-16 | 82 | 6 |
| Teller County | 08119C | County | 63 | 2009-09-25 | 2009-09-25 | 63 | 10 |
| Town of Silt | 080223 | Community-numbered | 8 | 2006-08-02 | 2006-08-02 | 8 | 0 |
| Washington County | 08121C | County | 63 | 2021-05-18 | 2021-05-18 | 0 | 0 |
| Weld County | 08123C | County | 226 | 2024-09-26 | 2016-01-20 | 146 | 27 |
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.
- Alamosa County (08003)
- Baca County (08009)
- Bent County (08011)
- Cheyenne County (08017)
- Conejos County (08021)
- Costilla County (08023)
- Crowley County (08025)
- Custer County (08027)
- Dolores County (08033)
- Huerfano County (08055)
- Jackson County (08057)
- Kiowa County (08061)
- Kit Carson County (08063)
- Lake County (08065)
- Moffat County (08081)
- Otero County (08089)
- Phillips County (08095)
- San Miguel County (08113)
- Yuma County (08125)
Source: FEMA NFHL layers 1, 3 and 22 and the Census Bureau county gazetteer, computed September 29, 2026. All states ยท API reference