FEMA flood map notices
Flood map changes in Colorado
Since November 2023, FEMA has published flood hazard notices covering 30 of Colorado's 64 counties.
| County | Notices | Most recent | Appeal window |
|---|---|---|---|
| Boulder County | 34 | Sep 10, 2026 | — |
| Broomfield County | 7 | Sep 10, 2026 | — |
| Denver County | 7 | Sep 10, 2026 | — |
| Douglas County | 19 | Sep 10, 2026 | — |
| Larimer County | 26 | Sep 10, 2026 | — |
| Phillips County | 1 | Sep 10, 2026 | — |
| Weld County | 19 | Sep 10, 2026 | — |
| Adams County | 20 | Aug 21, 2026 | — |
| Arapahoe County | 30 | Aug 21, 2026 | — |
| El Paso County | 16 | Aug 21, 2026 | — |
| Jefferson County | 20 | Aug 21, 2026 | — |
| Mesa County | 6 | Aug 21, 2026 | — |
| Teller County | 2 | Aug 21, 2026 | — |
| Pitkin County | 4 | Jul 9, 2026 | — |
| Delta County | 3 | Jun 11, 2026 | — |
| Eagle County | 3 | Jun 11, 2026 | — |
| Montrose County | 3 | Jun 11, 2026 | — |
| Routt County | 4 | Jun 11, 2026 | — |
| Yuma County | 2 | Jun 11, 2026 | — |
| Saguache County | 2 | May 18, 2026 | — |
| Gunnison County | 2 | Dec 18, 2025 | — |
| Pueblo County | 4 | Dec 8, 2025 | — |
| Mineral County | 2 | Mar 21, 2025 | — |
| San Miguel County | 2 | Mar 12, 2025 | — |
| Elbert County | 2 | Jan 8, 2025 | — |
| Summit County | 2 | Jun 14, 2024 | — |
| Hinsdale County | 1 | Jun 7, 2024 | — |
| Lincoln County | 1 | Jun 7, 2024 | — |
| La Plata County | 1 | Dec 26, 2023 | — |
| Chaffee County | 1 | Dec 13, 2023 | — |
All counties in Colorado
- Adams County
- Alamosa County
- Arapahoe County
- Archuleta County
- Baca County
- Bent County
- Boulder County
- Broomfield County
- Chaffee County
- Cheyenne County
- Clear Creek County
- Conejos County
- Costilla County
- Crowley County
- Custer County
- Delta County
- Denver County
- Dolores County
- Douglas County
- Eagle County
- El Paso County
- Elbert County
- Fremont County
- Garfield County
- Gilpin County
- Grand County
- Gunnison County
- Hinsdale County
- Huerfano County
- Jackson County
- Jefferson County
- Kiowa County
- Kit Carson County
- La Plata County
- Lake County
- Larimer County
- Las Animas County
- Lincoln County
- Logan County
- Mesa County
- Mineral County
- Moffat County
- Montezuma County
- Montrose County
- Morgan County
- Otero County
- Ouray County
- Park County
- Phillips County
- Pitkin County
- Prowers County
- Pueblo County
- Rio Blanco County
- Rio Grande County
- Routt County
- Saguache County
- San Juan County
- San Miguel County
- Sedgwick County
- Summit County
- Teller County
- Washington County
- Weld County
- Yuma County
What these notices mean
- Proposed
- FEMA has new draft flood maps. This starts a 90-day window when owners can appeal with technical data. It's the best time to act.
- Final
- Appeals are resolved. The new maps usually take effect about six months later, when lenders start applying the new zones.
- Map revision
- A Letter of Map Revision changes one stretch of the map, often after a levee, channel project or new survey.
Notices are organized by county and community, so a notice for your county doesn't mean your property is changing zones. What flood zones mean