# Counties in New Mexico by population density, 2025

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

- Indicator id: `population_density`
- Unit: inhabitants per km²
- Definition: Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.
- Source: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km² (https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/)
- Retrieved: 2026-10-09
- Citation: U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.
- Web page: https://invokely.ai/rankings/population-density/new-mexico-counties
- CSV: https://invokely.ai/download/rankings/population-density/new-mexico-counties.csv

| Rank | Place | inhabitants per km² |
|---:|---|---:|
| 1 | Bernalillo County | 221.9 |
| 2 | Los Alamos County | 68.7 |
| 3 | Santa Fe County | 31.7 |
| 4 | Valencia County | 29.7 |
| 5 | Doña Ana County | 23.2 |
| 6 | Sandoval County | 16.6 |
| 7 | Curry County | 12.8 |
| 8 | San Juan County | 8.4 |
| 9 | Lea County | 6.6 |
| 10 | Taos County | 6.1 |
| 11 | Eddy County | 5.8 |
| 12 | McKinley County | 4.8 |
| 13 | Otero County | 4.1 |
| 14 | Chaves County | 4 |
| 15 | Luna County | 3.3 |
| 16 | Roosevelt County | 2.9 |
| 17 | Grant County | 2.7 |
| 18 | Rio Arriba County | 2.6 |
| 19 | Cibola County | 2.3 |
| 20 | San Miguel County | 2.1 |
| 21 | Torrance County | 1.9 |
| 22 | Lincoln County | 1.6 |
| 23 | Colfax County | 1.3 |
| 24 | Quay County | 1.1 |
| 25 | Sierra County | 1.1 |
| 26 | Socorro County | 0.9 |
| 27 | Mora County | 0.8 |
| 28 | Guadalupe County | 0.6 |
| 29 | Hidalgo County | 0.4 |
| 30 | Union County | 0.4 |
| 31 | De Baca County | 0.3 |
| 32 | Catron County | 0.2 |
| 33 | Harding County | 0.1 |