Demographics Table
Demographic Data Report for Colorado by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age Under 18)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| Colorado | N/A | 21.0 | 1,231,527 | 36 of 52 |
| United States | N/A | 22.0 | 73,517,834 | N/A |
| Adams County | Urban | 24.9 | 131,839 | 456 |
| Alamosa County | Rural | 23.8 | 3,939 | 748 |
| Arapahoe County | Urban | 22.6 | 149,062 | 1,220 |
| Archuleta County | Rural | 16.7 | 2,321 | 2,918 |
| Baca County | Rural | 22.4 | 768 | 1,311 |
| Bent County | Rural | 16.0 | 889 | 2,976 |
| Boulder County | Urban | 17.5 | 57,715 | 2,810 |
| Broomfield County | Urban | 20.5 | 15,615 | 2,095 |
| Chaffee County | Rural | 13.9 | 2,804 | 3,093 |
| Cheyenne County | Rural | 22.2 | 386 | 1,395 |
| Clear Creek County | Urban | 14.8 | 1,370 | 3,054 |
| Conejos County | Rural | 25.3 | 1,903 | 362 |
| Costilla County | Rural | 18.6 | 671 | 2,620 |
| Crowley County | Rural | 13.0 | 735 | 3,108 |
| Custer County | Rural | 13.7 | 719 | 3,100 |
| Delta County | Rural | 19.1 | 6,029 | 2,518 |
| Denver County | Urban | 18.0 | 129,515 | 2,719 |
| Dolores County | Rural | 14.0 | 340 | 3,088 |
| Douglas County | Urban | 23.4 | 88,298 | 889 |
| Eagle County | Rural | 20.4 | 11,268 | 2,129 |
| El Paso County | Urban | 23.1 | 171,727 | 1,006 |
| Elbert County | Urban | 21.2 | 5,919 | 1,816 |
| Fremont County | Rural | 16.0 | 7,936 | 2,976 |
| Garfield County | Rural | 24.6 | 15,339 | 514 |
| Gilpin County | Urban | 16.4 | 967 | 2,945 |
| Grand County | Rural | 15.9 | 2,535 | 2,987 |
| Gunnison County | Rural | 15.2 | 2,614 | 3,036 |
| Hinsdale County | Rural | 18.5 | 186 | 2,641 |
| Huerfano County | Rural | 15.6 | 1,088 | 3,005 |
| Jackson County | Rural | 16.9 | 232 | 2,900 |
| Jefferson County | Urban | 18.5 | 106,970 | 2,641 |
| Kiowa County | Rural | 21.7 | 298 | 1,613 |
| Kit Carson County | Rural | 26.1 | 1,835 | 245 |
| La Plata County | Rural | 17.5 | 9,867 | 2,810 |
| Lake County | Rural | 18.6 | 1,369 | 2,620 |
| Larimer County | Urban | 18.3 | 67,339 | 2,677 |
| Las Animas County | Rural | 18.0 | 2,592 | 2,719 |
| Lincoln County | Rural | 17.4 | 964 | 2,833 |
| Logan County | Rural | 18.0 | 3,757 | 2,719 |
| Mesa County | Urban | 20.4 | 32,410 | 2,129 |
| Mineral County | Rural | 11.8 | 86 | 3,124 |
| Moffat County | Rural | 24.2 | 3,197 | 635 |
| Montezuma County | Rural | 20.7 | 5,468 | 2,021 |
| Montrose County | Rural | 20.0 | 8,775 | 2,262 |
| Morgan County | Rural | 25.0 | 7,368 | 435 |
| Otero County | Rural | 23.1 | 4,232 | 1,006 |
| Ouray County | Rural | 12.6 | 639 | 3,111 |
| Park County | Urban | 14.3 | 2,554 | 3,078 |
| Phillips County | Rural | 25.5 | 1,145 | 321 |
| Pitkin County | Rural | 14.6 | 2,484 | 3,067 |
| Prowers County | Rural | 26.1 | 3,107 | 245 |
| Pueblo County | Urban | 21.8 | 36,904 | 1,576 |
| Rio Blanco County | Rural | 24.3 | 1,589 | 602 |
| Rio Grande County | Rural | 20.1 | 2,281 | 2,226 |
| Routt County | Rural | 17.2 | 4,312 | 2,858 |
| Saguache County | Rural | 17.8 | 1,174 | 2,756 |
| San Juan County | Rural | 12.8 | 93 | 3,109 |
| San Miguel County | Rural | 17.9 | 1,425 | 2,742 |
| Sedgwick County | Rural | 22.1 | 510 | 1,441 |
| Summit County | Rural | 16.3 | 5,046 | 2,950 |
| Teller County | Urban | 15.7 | 3,889 | 2,995 |
| Washington County | Rural | 22.2 | 1,071 | 1,395 |
| Weld County | Urban | 25.5 | 89,272 | 321 |
| Yuma County | Rural | 27.8 | 2,776 | 138 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/22/2026 5:24 am.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
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.