Ranking of New Mexico Counties By Total Population from Census 2020
Updated on February 7, 2023.
According to the data from the US 2020 Census, the most populated New Mexico county as at April 2020 was Bernalillo County (676.44K), followed by Doña Ana County (219.56K), and Santa Fe County (154.82K).
The chart below shows the top 10 most populated counties, and the table below shows the ranking of all the counties in the state of New Mexico.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: New Mexico Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of New Mexico Counties By Total Population from Census 2020
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| Rank | County | Population |
|---|---|---|
| 1 | Bernalillo County | 676444 |
| 2 | Doña Ana County | 219561 |
| 3 | Santa Fe County | 154823 |
| 4 | Sandoval County | 148834 |
| 5 | San Juan County | 121661 |
| 6 | Valencia County | 76205 |
| 7 | Lea County | 74455 |
| 8 | McKinley County | 72902 |
| 9 | Otero County | 67839 |
| 10 | Chaves County | 65157 |
| 11 | Eddy County | 62314 |
| 12 | Curry County | 48430 |
| 13 | Rio Arriba County | 40363 |
| 14 | Taos County | 34489 |
| 15 | Grant County | 28185 |
| 16 | San Miguel County | 27201 |
| 17 | Cibola County | 27172 |
| 18 | Luna County | 25427 |
| 19 | Lincoln County | 20269 |
| 20 | Los Alamos County | 19419 |
| 21 | Roosevelt County | 19191 |
| 22 | Socorro County | 16595 |
| 23 | Torrance County | 15045 |
| 24 | Colfax County | 12387 |
| 25 | Sierra County | 11576 |
| 26 | Quay County | 8746 |
| 27 | Guadalupe County | 4452 |
| 28 | Mora County | 4189 |
| 29 | Hidalgo County | 4178 |
| 30 | Union County | 4079 |
| 31 | Catron County | 3579 |
| 32 | De Baca County | 1698 |
| 33 | Harding County | 657 |