# Counties in Colorado by median age, 2024

All 64 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `median_age`
- Unit: years
- Definition: Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
- Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population (https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat)
- Retrieved: 2026-10-08
- Citation: U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-08.
- Web page: https://invokely.ai/rankings/median-age/colorado-counties
- CSV: https://invokely.ai/download/rankings/median-age/colorado-counties.csv

| Rank | Place | years |
|---:|---|---:|
| 1 | Custer County | 58.2 |
| 2 | Dolores County | 56.7 |
| 3 | Mineral County | 56.4 |
| 4 | Ouray County | 55.4 |
| 5 | Huerfano County | 55.3 |
| 6 | Teller County | 52.2 |
| 7 | Archuleta County | 52.1 |
| 8 | Jackson County | 51.6 |
| 9 | Park County | 51.2 |
| 10 | Costilla County | 50.5 |
| 11 | Saguache County | 49.6 |
| 12 | Clear Creek County | 49.1 |
| 13 | Chaffee County | 48.7 |
| 14 | Hinsdale County | 48.5 |
| 15 | Delta County | 48.1 |
| 16 | Gilpin County | 47.2 |
| 16 | Pitkin County | 47.2 |
| 18 | Las Animas County | 46.6 |
| 19 | Montrose County | 46.1 |
| 20 | Grand County | 45.4 |
| 20 | Kiowa County | 45.4 |
| 22 | Elbert County | 45 |
| 23 | Fremont County | 44.7 |
| 24 | Montezuma County | 44.5 |
| 25 | Routt County | 43.4 |
| 26 | San Miguel County | 43.3 |
| 27 | La Plata County | 43.2 |
| 28 | Baca County | 43 |
| 29 | Cheyenne County | 42.9 |
| 30 | Sedgwick County | 42.6 |
| 31 | Otero County | 41.8 |
| 32 | Rio Grande County | 41.7 |
| 33 | Mesa County | 41.3 |
| 33 | Washington County | 41.3 |
| 35 | Lincoln County | 40.9 |
| 35 | Phillips County | 40.9 |
| 37 | Crowley County | 40.8 |
| 38 | Bent County | 40.6 |
| 38 | Conejos County | 40.6 |
| 40 | Jefferson County | 40.5 |
| 40 | Yuma County | 40.5 |
| 42 | Pueblo County | 40.4 |
| 43 | Moffat County | 40.1 |
| 44 | Eagle County | 39.7 |
| 45 | Douglas County | 39.6 |
| 46 | Kit Carson County | 39.5 |
| 46 | Summit County | 39.5 |
| 48 | Logan County | 39.2 |
| 49 | Broomfield County | 38.6 |
| 50 | Rio Blanco County | 37.8 |
| 51 | Boulder County | 37.7 |
| 51 | Prowers County | 37.7 |
| 53 | Garfield County | 37.6 |
| 54 | Gunnison County | 37.5 |
| 54 | Morgan County | 37.5 |
| 54 | San Juan County | 37.5 |
| 57 | Arapahoe County | 37.3 |
| 57 | Lake County | 37.3 |
| 59 | Larimer County | 36.8 |
| 60 | Denver County | 35.3 |
| 60 | Weld County | 35.3 |
| 62 | El Paso County | 35.1 |
| 63 | Adams County | 34.8 |
| 64 | Alamosa County | 33.2 |