Ranking of New Mexico Counties By Total Voting-age Population (18yrs and over) from Census 2020
Updated on August 22, 2023.
According to the data from the US 2020 Census, as at April 2020, among all the counties in New Mexico, Bernalillo County had the highest voting-age population (18 years and over) (533.77K), followed by Doña Ana County (167.14K), and Santa Fe County (127.85K).
The chart below shows the top 10 counties with high voting-age population, and the table below shows the ranking of all New Mexico counties based on voting-age population.
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 Voting-age Population from Census 2020
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| Rank | County | Voting-age Population |
|---|---|---|
| 1 | Bernalillo County | 533771 |
| 2 | Doña Ana County | 167142 |
| 3 | Santa Fe County | 127850 |
| 4 | Sandoval County | 113956 |
| 5 | San Juan County | 89664 |
| 6 | Valencia County | 58139 |
| 7 | Lea County | 52736 |
| 8 | McKinley County | 52680 |
| 9 | Otero County | 52218 |
| 10 | Chaves County | 47971 |
| 11 | Eddy County | 45921 |
| 12 | Curry County | 35463 |
| 13 | Rio Arriba County | 31787 |
| 14 | Taos County | 28445 |
| 15 | Grant County | 22831 |
| 16 | San Miguel County | 21911 |
| 17 | Cibola County | 20758 |
| 18 | Luna County | 19118 |
| 19 | Lincoln County | 16678 |
| 20 | Los Alamos County | 15050 |
| 21 | Roosevelt County | 14440 |
| 22 | Socorro County | 13075 |
| 23 | Torrance County | 11933 |
| 24 | Colfax County | 10108 |
| 25 | Sierra County | 9795 |
| 26 | Quay County | 6828 |
| 27 | Guadalupe County | 3586 |
| 28 | Mora County | 3499 |
| 29 | Union County | 3260 |
| 30 | Hidalgo County | 3239 |
| 31 | Catron County | 3216 |
| 32 | De Baca County | 1360 |
| 33 | Harding County | 561 |