Interpretation of Demographics Data
Demographic Data Report for Colorado by County
Population: Age 18-39
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
United States
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 29.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 98,945,767.
- Rank within US : N/A
Colorado
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 32.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,900,168.
- Rank within US : This county is ranked 3 of 52
Dolores County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 14.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 356.
- Rank within US : This county is ranked 3129 of 3143
Custer County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 16.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 841.
- Rank within US : This county is ranked 3116 of 3143
Ouray County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 16.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 853.
- Rank within US : This county is ranked 3101 of 3143
Huerfano County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 17.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,211.
- Rank within US : This county is ranked 3086 of 3143
Mineral County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 18.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 138.
- Rank within US : This county is ranked 3026 of 3143
Jackson County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 19.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 263.
- Rank within US : This county is ranked 3013 of 3143
Archuleta County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,781.
- Rank within US : This county is ranked 2964 of 3143
Gilpin County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 20.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,198.
- Rank within US : This county is ranked 2939 of 3143
Teller County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 20.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 5,170.
- Rank within US : This county is ranked 2889 of 3143
Park County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 20.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 3,751.
- Rank within US : This county is ranked 2871 of 3143
Delta County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 6,669.
- Rank within US : This county is ranked 2837 of 3143
Kiowa County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 290.
- Rank within US : This county is ranked 2837 of 3143
Cheyenne County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 374.
- Rank within US : This county is ranked 2787 of 3143
Costilla County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 776.
- Rank within US : This county is ranked 2787 of 3143
Yuma County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,142.
- Rank within US : This county is ranked 2787 of 3143
Clear Creek County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 22.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,055.
- Rank within US : This county is ranked 2667 of 3143
Phillips County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 999.
- Rank within US : This county is ranked 2667 of 3143
Elbert County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 22.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 6,261.
- Rank within US : This county is ranked 2613 of 3143
Saguache County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.7 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,493.
- Rank within US : This county is ranked 2567 of 3143
Montrose County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 10,021.
- Rank within US : This county is ranked 2508 of 3143
Montezuma County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 6,100.
- Rank within US : This county is ranked 2459 of 3143
Baca County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 803.
- Rank within US : This county is ranked 2371 of 3143
Hinsdale County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 236.
- Rank within US : This county is ranked 2338 of 3143
Conejos County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,798.
- Rank within US : This county is ranked 2221 of 3143
Chaffee County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,921.
- Rank within US : This county is ranked 2081 of 3143
Kit Carson County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.7 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,736.
- Rank within US : This county is ranked 1977 of 3143
Prowers County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.7 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,939.
- Rank within US : This county is ranked 1977 of 3143
Sedgwick County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 571.
- Rank within US : This county is ranked 1934 of 3143
Otero County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,593.
- Rank within US : This county is ranked 1836 of 3143
Las Animas County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 3,634.
- Rank within US : This county is ranked 1789 of 3143
San Miguel County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,029.
- Rank within US : This county is ranked 1660 of 3143
Moffat County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 3,386.
- Rank within US : This county is ranked 1623 of 3143
Pitkin County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,436.
- Rank within US : This county is ranked 1451 of 3143
Rio Grande County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,983.
- Rank within US : This county is ranked 1375 of 3143
Washington County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,278.
- Rank within US : This county is ranked 1298 of 3143
Grand County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 27.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,295.
- Rank within US : This county is ranked 1142 of 3143
Douglas County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 27.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 102,670.
- Rank within US : This county is ranked 1081 of 3143
Routt County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 27.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 6,881.
- Rank within US : This county is ranked 1021 of 3143
Fremont County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 27.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 13,632.
- Rank within US : This county is ranked 993 of 3143
Mesa County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 27.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 43,740.
- Rank within US : This county is ranked 961 of 3143
Pueblo County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 27.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 46,767.
- Rank within US : This county is ranked 961 of 3143
La Plata County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 27.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 15,642.
- Rank within US : This county is ranked 911 of 3143
Morgan County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 28.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 8,296.
- Rank within US : This county is ranked 843 of 3143
Garfield County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 18,169.
- Rank within US : This county is ranked 638 of 3143
Rio Blanco County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,913.
- Rank within US : This county is ranked 615 of 3143
Lincoln County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,652.
- Rank within US : This county is ranked 513 of 3143
Eagle County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 30.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 16,665.
- Rank within US : This county is ranked 458 of 3143
Jefferson County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 30.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 178,639.
- Rank within US : This county is ranked 400 of 3143
Broomfield County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 31.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 23,899.
- Rank within US : This county is ranked 349 of 3143
Arapahoe County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 31.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 207,249.
- Rank within US : This county is ranked 337 of 3143
Weld County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 31.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 110,292.
- Rank within US : This county is ranked 328 of 3143
Bent County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 33.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,837.
- Rank within US : This county is ranked 239 of 3143
Logan County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 33.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 6,937.
- Rank within US : This county is ranked 232 of 3143
Adams County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 33.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 177,501.
- Rank within US : This county is ranked 217 of 3143
El Paso County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 34.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 253,665.
- Rank within US : This county is ranked 192 of 3143
Summit County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 34.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 10,690.
- Rank within US : This county is ranked 176 of 3143
Boulder County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 35.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 116,021.
- Rank within US : This county is ranked 144 of 3143
Larimer County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 35.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 130,962.
- Rank within US : This county is ranked 135 of 3143
Lake County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 35.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,651.
- Rank within US : This county is ranked 125 of 3143
Crowley County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 36.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,040.
- Rank within US : This county is ranked 118 of 3143
Alamosa County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 37.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 6,192.
- Rank within US : This county is ranked 95 of 3143
Gunnison County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 37.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 6,487.
- Rank within US : This county is ranked 89 of 3143
Denver County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 41.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 295,400.
- Rank within US : This county is ranked 45 of 3143
San Juan County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 41.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 299.
- Rank within US : This county is ranked 44 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 03/22/2026 6:33 pm.
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 18-39, see the dictionary.
Data for United States does not include Puerto Rico.


