Demographics Table
Demographic Data Report for Colorado by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Rank
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age Under 18)
|
Rank within US (of 3143 counties) 
|
|---|---|---|---|---|
| Colorado | N/A | 21.4 | 1,240,882 | 35 of 52 |
| United States | N/A | 22.2 | 73,645,238 | N/A |
| San Juan County | Rural | 11.3 | 78 | 3,128 |
| Mineral County | Rural | 12.5 | 100 | 3,116 |
| Ouray County | Rural | 12.6 | 633 | 3,115 |
| Crowley County | Rural | 13.5 | 774 | 3,104 |
| Hinsdale County | Rural | 13.6 | 128 | 3,102 |
| Dolores County | Rural | 14.0 | 335 | 3,092 |
| Clear Creek County | Urban | 14.2 | 1,327 | 3,086 |
| Custer County | Rural | 14.4 | 731 | 3,081 |
| Chaffee County | Rural | 14.6 | 2,895 | 3,075 |
| Park County | Urban | 14.7 | 2,605 | 3,070 |
| Pitkin County | Rural | 15.0 | 2,560 | 3,058 |
| Gilpin County | Urban | 15.7 | 924 | 3,014 |
| Gunnison County | Rural | 15.7 | 2,692 | 3,014 |
| Fremont County | Rural | 16.0 | 7,917 | 2,988 |
| Huerfano County | Rural | 16.0 | 1,112 | 2,988 |
| San Miguel County | Rural | 16.0 | 1,284 | 2,988 |
| Teller County | Urban | 16.0 | 3,970 | 2,988 |
| Grand County | Rural | 16.1 | 2,540 | 2,984 |
| Bent County | Rural | 16.2 | 894 | 2,976 |
| Summit County | Rural | 16.4 | 5,064 | 2,956 |
| Archuleta County | Rural | 17.2 | 2,366 | 2,882 |
| Routt County | Rural | 17.5 | 4,380 | 2,844 |
| Lincoln County | Rural | 17.7 | 982 | 2,816 |
| La Plata County | Rural | 17.9 | 10,054 | 2,778 |
| Boulder County | Urban | 18.0 | 59,132 | 2,761 |
| Denver County | Urban | 18.3 | 130,820 | 2,702 |
| Las Animas County | Rural | 18.3 | 2,628 | 2,702 |
| Logan County | Rural | 18.3 | 3,849 | 2,702 |
| Saguache County | Rural | 18.5 | 1,207 | 2,670 |
| Larimer County | Urban | 18.7 | 67,996 | 2,629 |
| Costilla County | Rural | 18.8 | 670 | 2,608 |
| Jefferson County | Urban | 18.9 | 109,290 | 2,581 |
| Jackson County | Rural | 19.1 | 271 | 2,537 |
| Delta County | Rural | 19.3 | 6,051 | 2,489 |
| Lake County | Rural | 19.3 | 1,431 | 2,489 |
| Rio Grande County | Rural | 20.4 | 2,323 | 2,187 |
| Montrose County | Rural | 20.5 | 8,864 | 2,151 |
| Eagle County | Rural | 20.8 | 11,520 | 2,044 |
| Mesa County | Urban | 20.9 | 32,807 | 2,008 |
| Montezuma County | Rural | 20.9 | 5,489 | 2,008 |
| Broomfield County | Urban | 21.1 | 15,845 | 1,936 |
| Elbert County | Urban | 21.1 | 5,728 | 1,936 |
| Sedgwick County | Rural | 21.9 | 513 | 1,606 |
| Pueblo County | Urban | 22.0 | 37,145 | 1,567 |
| Kiowa County | Rural | 22.2 | 301 | 1,469 |
| Baca County | Rural | 22.3 | 772 | 1,429 |
| Washington County | Rural | 22.3 | 1,078 | 1,429 |
| Cheyenne County | Rural | 22.8 | 395 | 1,209 |
| Arapahoe County | Urban | 22.9 | 150,051 | 1,173 |
| El Paso County | Urban | 23.4 | 172,420 | 947 |
| Otero County | Rural | 23.4 | 4,315 | 947 |
| Alamosa County | Rural | 23.6 | 3,902 | 866 |
| Douglas County | Urban | 24.0 | 88,460 | 718 |
| Rio Blanco County | Rural | 24.5 | 1,594 | 572 |
| Garfield County | Rural | 24.9 | 15,464 | 492 |
| Moffat County | Rural | 25.2 | 3,342 | 426 |
| Adams County | Urban | 25.4 | 133,000 | 378 |
| Conejos County | Rural | 25.4 | 1,914 | 378 |
| Prowers County | Rural | 25.7 | 3,070 | 324 |
| Weld County | Urban | 25.7 | 87,535 | 324 |
| Kit Carson County | Rural | 25.9 | 1,816 | 299 |
| Phillips County | Rural | 26.0 | 1,168 | 281 |
| Morgan County | Rural | 26.2 | 7,638 | 259 |
| Yuma County | Rural | 27.4 | 2,723 | 173 |
Notes:
Created by statecancerprofiles.cancer.gov on 12/14/2025 12:32 pm.
Φ Rural-Urban Continuum Codes provided by the USDA.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Data for United States does not include Puerto Rico.
Created by statecancerprofiles.cancer.gov on 12/14/2025 12:32 pm.
Φ Rural-Urban Continuum Codes provided by the USDA.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Data for United States does not include Puerto Rico.