Interpretation of Demographics Data
Demographic Data Report for New Mexico by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
New Mexico
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 21.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 461,141.
- Rank within US : This county is ranked 28 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
Catron County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 6.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 230.
- Rank within US : This county is ranked 3139 of 3143
Sierra 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 1,795.
- Rank within US : This county is ranked 3005 of 3143
Taos 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 5,400.
- Rank within US : This county is ranked 3005 of 3143
Santa Fe County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 16.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 25,077.
- Rank within US : This county is ranked 2966 of 3143
Lincoln 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 3,369.
- Rank within US : This county is ranked 2918 of 3143
San Miguel 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 4,528.
- Rank within US : This county is ranked 2900 of 3143
Mora County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 17.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 710.
- Rank within US : This county is ranked 2875 of 3143
Colfax 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 2,160.
- Rank within US : This county is ranked 2810 of 3143
Grant 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 4,974.
- Rank within US : This county is ranked 2742 of 3143
De Baca County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 19.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 302.
- Rank within US : This county is ranked 2493 of 3143
Quay County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 19.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,681.
- Rank within US : This county is ranked 2372 of 3143
Torrance County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 20.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,134.
- Rank within US : This county is ranked 2193 of 3143
Bernalillo County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 20.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 136,749.
- Rank within US : This county is ranked 2158 of 3143
Hidalgo County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 862.
- Rank within US : This county is ranked 1775 of 3143
Union County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 856.
- Rank within US : This county is ranked 1775 of 3143
Sandoval County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 21.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 33,391.
- Rank within US : This county is ranked 1613 of 3143
Otero County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 15,054.
- Rank within US : This county is ranked 1525 of 3143
Los Alamos County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,278.
- Rank within US : This county is ranked 1478 of 3143
Guadalupe County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 976.
- Rank within US : This county is ranked 1356 of 3143
Rio Arriba County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 9,016.
- Rank within US : This county is ranked 1260 of 3143
Valencia County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 22.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 17,834.
- Rank within US : This county is ranked 1174 of 3143
Dona Ana 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 51,915.
- Rank within US : This county is ranked 1006 of 3143
Cibola County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 6,233.
- Rank within US : This county is ranked 962 of 3143
Socorro County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,883.
- Rank within US : This county is ranked 690 of 3143
Chaves 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 15,799.
- Rank within US : This county is ranked 514 of 3143
San Juan 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 30,165.
- Rank within US : This county is ranked 456 of 3143
Roosevelt County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,745.
- Rank within US : This county is ranked 410 of 3143
Harding County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 188.
- Rank within US : This county is ranked 340 of 3143
Eddy County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 15,759.
- Rank within US : This county is ranked 280 of 3143
Luna County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 6,611.
- Rank within US : This county is ranked 280 of 3143
Curry County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 12,637.
- Rank within US : This county is ranked 215 of 3143
McKinley County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 27.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 19,076.
- Rank within US : This county is ranked 172 of 3143
Lea County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 21,754.
- Rank within US : This county is ranked 87 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 03/31/2026 6:36 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.