# Counties in New Mexico by population aged 18 to 64, 2025

All 33 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population_18_64_share`
- Unit: %
- Definition: Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.
- Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (https://www.census.gov/programs-surveys/popest/data/data-sets.html)
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/population-18-64/new-mexico-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Bernalillo County | 60.7 |
| 2 | Roosevelt County | 60.6 |
| 3 | Lea County | 60 |
| 4 | Los Alamos County | 60 |
| 5 | Eddy County | 59.7 |
| 6 | Guadalupe County | 59.5 |
| 7 | Curry County | 59.1 |
| 8 | McKinley County | 59 |
| 9 | Doña Ana County | 58.7 |
| 10 | Otero County | 58.4 |
| 11 | Union County | 58.3 |
| 12 | Chaves County | 58.3 |
| 13 | Cibola County | 58.2 |
| 14 | Socorro County | 57.9 |
| 15 | Valencia County | 57.6 |
| 16 | San Juan County | 57.6 |
| 17 | Sandoval County | 57.2 |
| 18 | San Miguel County | 56.5 |
| 19 | Rio Arriba County | 55.3 |
| 20 | Santa Fe County | 55.1 |
| 21 | Torrance County | 55.1 |
| 22 | Hidalgo County | 53.7 |
| 23 | Taos County | 53.1 |
| 24 | Colfax County | 53 |
| 25 | Luna County | 52.4 |
| 26 | De Baca County | 52 |
| 27 | Quay County | 51.2 |
| 28 | Grant County | 50.2 |
| 29 | Mora County | 49.6 |
| 30 | Lincoln County | 48.9 |
| 31 | Harding County | 47.3 |
| 32 | Sierra County | 46 |
| 33 | Catron County | 43.4 |