New Mexico Citizen Voting-age Population By County in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen voting-age population for New Mexico was 1,485,490 and represented 70.99% of the total New Mexico population.

Among all New Mexico counties, Bernalillo had the highest citizen voting-age population (488.85K), followed by Do�a Ana (139.60K), and Santa Fe (109.35K).

In terms of percentages, Catron had the highest percentage of its population being citizens of voting-age (86.72%), followed by Harding (84.78%), and Sierra (81.77%).

The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.

You can see similar information for other states and by state for the United States.

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New Mexico Citizen Voting-age Population By County in 2018
New Mexico Citizen Voting-age Population By County in 2018
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County Citizen Voting-age Population % of County Population
Bernalillo 488850 72.14
Do�a Ana 139595 64.83
Santa Fe 109350 73.43
Sandoval 104425 74.18
San Juan 90125 70.71
Valencia 54490 71.74
McKinley 50645 69.52
Otero 45545 69.28
Chaves 43545 66.52
Lea 41440 59.09
Eddy 40095 69.81
Curry 33850 67.43
Rio Arriba 29150 74.16
Taos 25865 78.64
Grant 21790 77.66
San Miguel 21785 77.71
Cibola 20025 74.22
Lincoln 15035 77.18
Luna 15025 61.92
Los Alamos 13550 73.82
Roosevelt 13095 68.51
Socorro 12515 73.62
Torrance 11810 75.73
Colfax 9810 79.40
Sierra 9105 81.77
Quay 6395 76.36
Mora 3700 81.05
Guadalupe 3560 81.28
Hidalgo 3210 73.46
Union 3170 75.93
Catron 3070 86.72
De Baca 1485 72.09
Harding 390 84.78