Fastest growing counties in New Mexico.
County | Rank | Change (2020) | 2024 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Catron County | 1 | 6.96% | 3,857 | 3,606 |
| Sandoval County | 2 | 6.02% | 158,275 | 149,290 |
| Torrance County | 3 | 5.45% | 15,883 | 15,062 |
| Valencia County | 4 | 4.85% | 80,081 | 76,374 |
| Doña Ana County | 5 | 3.1% | 226,890 | 220,060 |
| Otero County | 6 | 1.9% | 69,153 | 67,862 |
| Los Alamos County | 7 | 1.01% | 19,615 | 19,418 |
| Santa Fe County | 8 | 0.71% | 156,151 | 155,043 |
| San Juan County | 9 | -0.49% | 120,781 | 121,376 |
| Sierra County | 10 | -0.52% | 11,502 | 11,562 |
| Taos County | 11 | -0.71% | 34,220 | 34,463 |
| Colfax County | 12 | -0.92% | 12,238 | 12,352 |
| Bernalillo County | 13 | -0.98% | 670,215 | 676,853 |
| Rio Arriba County | 14 | -1.27% | 39,761 | 40,271 |
| Cibola County | 15 | -1.52% | 26,689 | 27,101 |
| Luna County | 16 | -2.04% | 24,939 | 25,458 |
| Mora County | 17 | -2.2% | 4,099 | 4,191 |
| Roosevelt County | 18 | -2.26% | 18,716 | 19,148 |
| Quay County | 19 | -2.54% | 8,491 | 8,712 |
| San Miguel County | 20 | -2.57% | 26,434 | 27,131 |
| Curry County | 21 | -2.8% | 47,014 | 48,370 |
| Lincoln County | 22 | -2.92% | 19,715 | 20,307 |
| Chaves County | 23 | -2.95% | 63,230 | 65,149 |
| Union County | 24 | -3.07% | 3,946 | 4,071 |
| Eddy County | 25 | -3.19% | 60,347 | 62,333 |
| Grant County | 26 | -3.38% | 27,251 | 28,205 |
| De Baca County | 27 | -3.51% | 1,622 | 1,681 |
| Lea County | 28 | -3.73% | 71,859 | 74,642 |
| Guadalupe County | 29 | -3.85% | 4,268 | 4,439 |
| Harding County | 30 | -3.98% | 627 | 653 |
| Socorro County | 31 | -4.45% | 15,815 | 16,551 |
| Hidalgo County | 32 | -5.88% | 3,919 | 4,164 |
| McKinley County | 33 | -6.79% | 67,663 | 72,590 |