Fastest growing counties in Arizona.
County | Rank | Change (2020) | 2024 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Pinal County | 1 | 17.03% | 503,441 | 430,187 |
| Yavapai County | 2 | 6.2% | 251,932 | 237,217 |
| Yuma County | 3 | 5.79% | 217,568 | 205,659 |
| Mohave County | 4 | 5.73% | 226,459 | 214,185 |
| Graham County | 5 | 4.09% | 40,228 | 38,646 |
| Santa Cruz County | 6 | 4.03% | 49,636 | 47,712 |
| Maricopa County | 7 | 3.84% | 4,615,909 | 4,445,059 |
| Navajo County | 8 | 2.61% | 109,550 | 106,763 |
| Pima County | 9 | 2.26% | 1,068,848 | 1,045,175 |
| La Paz County | 10 | 1.91% | 16,885 | 16,569 |
| Gila County | 11 | 1.37% | 54,084 | 53,351 |
| Coconino County | 12 | -0.32% | 144,721 | 145,192 |
| Greenlee County | 13 | -1.23% | 9,411 | 9,528 |
| Cochise County | 14 | -1.38% | 123,793 | 125,527 |
| Apache County | 15 | -2.08% | 64,539 | 65,913 |