# Counties in Arizona by population density, 2025

All 15 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/arizona-counties
- CSV: https://invokely.ai/download/rankings/population-density/arizona-counties.csv

| Rank | Place | inhabitants per km² |
|---:|---|---:|
| 1 | Maricopa County | 196.8 |
| 2 | Pima County | 45.2 |
| 3 | Pinal County | 38.8 |
| 4 | Yuma County | 15.7 |
| 5 | Santa Cruz County | 15.6 |
| 6 | Yavapai County | 12 |
| 7 | Cochise County | 7.9 |
| 8 | Mohave County | 6.6 |
| 9 | Gila County | 4.4 |
| 10 | Navajo County | 4.3 |
| 11 | Graham County | 3.4 |
| 12 | Coconino County | 3 |
| 13 | Apache County | 2.2 |
| 14 | Greenlee County | 2 |
| 15 | La Paz County | 1.4 |