State Cancer Profiles

Interpretation of Demographics Data

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

Colorado

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Value (Percent) : The value is 21.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,231,527.
• Rank within US : This county is ranked 36 of 52

United States

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Value (Percent) : The value is 22.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 73,517,834.
• Rank within US : N/A

Mineral County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 11.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 86.
• Rank within US : This county is ranked 3124 of 3143

Ouray County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 12.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 639.
• Rank within US : This county is ranked 3111 of 3143

San Juan County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 12.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 93.
• Rank within US : This county is ranked 3109 of 3143

Crowley County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 13.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 735.
• Rank within US : This county is ranked 3108 of 3143

Custer County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 13.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 719.
• Rank within US : This county is ranked 3100 of 3143

Chaffee County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 13.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,804.
• Rank within US : This county is ranked 3093 of 3143

Dolores County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 14.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 340.
• Rank within US : This county is ranked 3088 of 3143

Park County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 14.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,554.
• Rank within US : This county is ranked 3078 of 3143

Pitkin County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 14.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,484.
• Rank within US : This county is ranked 3067 of 3143

Clear Creek County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 14.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,370.
• Rank within US : This county is ranked 3054 of 3143

Gunnison County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 15.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,614.
• Rank within US : This county is ranked 3036 of 3143

Huerfano County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 15.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,088.
• Rank within US : This county is ranked 3005 of 3143

Teller County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 15.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,889.
• Rank within US : This county is ranked 2995 of 3143

Grand County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 15.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,535.
• Rank within US : This county is ranked 2987 of 3143

Bent County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 889.
• Rank within US : This county is ranked 2976 of 3143

Fremont County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,936.
• Rank within US : This county is ranked 2976 of 3143

Summit County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,046.
• Rank within US : This county is ranked 2950 of 3143

Gilpin County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 16.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 967.
• Rank within US : This county is ranked 2945 of 3143

Archuleta County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,321.
• Rank within US : This county is ranked 2918 of 3143

Jackson County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 232.
• Rank within US : This county is ranked 2900 of 3143

Routt County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,312.
• Rank within US : This county is ranked 2858 of 3143

Lincoln County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 964.
• Rank within US : This county is ranked 2833 of 3143

Boulder County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 17.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 57,715.
• Rank within US : This county is ranked 2810 of 3143

La Plata County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,867.
• Rank within US : This county is ranked 2810 of 3143

Saguache County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,174.
• Rank within US : This county is ranked 2756 of 3143

San Miguel County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,425.
• Rank within US : This county is ranked 2742 of 3143

Denver County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 18.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 129,515.
• Rank within US : This county is ranked 2719 of 3143

Las Animas County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 18.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,592.
• Rank within US : This county is ranked 2719 of 3143

Logan County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 18.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,757.
• Rank within US : This county is ranked 2719 of 3143

Larimer County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 18.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 67,339.
• Rank within US : This county is ranked 2677 of 3143

Hinsdale County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 18.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 186.
• Rank within US : This county is ranked 2641 of 3143

Jefferson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 18.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 106,970.
• Rank within US : This county is ranked 2641 of 3143

Costilla County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 18.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 671.
• Rank within US : This county is ranked 2620 of 3143

Lake County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 18.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,369.
• Rank within US : This county is ranked 2620 of 3143

Delta County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,029.
• Rank within US : This county is ranked 2518 of 3143

Montrose County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 8,775.
• Rank within US : This county is ranked 2262 of 3143

Rio Grande County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,281.
• Rank within US : This county is ranked 2226 of 3143

Eagle County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 11,268.
• Rank within US : This county is ranked 2129 of 3143

Mesa County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 32,410.
• Rank within US : This county is ranked 2129 of 3143

Broomfield County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 15,615.
• Rank within US : This county is ranked 2095 of 3143

Montezuma County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,468.
• Rank within US : This county is ranked 2021 of 3143

Elbert County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,919.
• Rank within US : This county is ranked 1816 of 3143

Kiowa County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 298.
• Rank within US : This county is ranked 1613 of 3143

Pueblo County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 36,904.
• Rank within US : This county is ranked 1576 of 3143

Sedgwick County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 510.
• Rank within US : This county is ranked 1441 of 3143

Cheyenne County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 386.
• Rank within US : This county is ranked 1395 of 3143

Washington County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,071.
• Rank within US : This county is ranked 1395 of 3143

Baca County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 768.
• Rank within US : This county is ranked 1311 of 3143

Arapahoe County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 149,062.
• Rank within US : This county is ranked 1220 of 3143

El Paso County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 171,727.
• Rank within US : This county is ranked 1006 of 3143

Otero County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,232.
• Rank within US : This county is ranked 1006 of 3143

Douglas County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 88,298.
• Rank within US : This county is ranked 889 of 3143

Alamosa County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,939.
• Rank within US : This county is ranked 748 of 3143

Moffat County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,197.
• Rank within US : This county is ranked 635 of 3143

Rio Blanco County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,589.
• Rank within US : This county is ranked 602 of 3143

Garfield County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 15,339.
• Rank within US : This county is ranked 514 of 3143

Adams County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 24.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 131,839.
• Rank within US : This county is ranked 456 of 3143

Morgan County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,368.
• Rank within US : This county is ranked 435 of 3143

Conejos County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,903.
• Rank within US : This county is ranked 362 of 3143

Phillips County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,145.
• Rank within US : This county is ranked 321 of 3143

Weld County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 25.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 89,272.
• Rank within US : This county is ranked 321 of 3143

Kit Carson County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 26.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,835.
• Rank within US : This county is ranked 245 of 3143

Prowers County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 26.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,107.
• Rank within US : This county is ranked 245 of 3143

Yuma County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 27.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,776.
• Rank within US : This county is ranked 138 of 3143

Notes:
Created by statecancerprofiles.cancer.gov on 03/21/2026 6:56 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 under 18, see the dictionary.

Data for United States does not include Puerto Rico.