New Mexico Voting-age Population By County in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the voting-age population of New Mexico was 1.62M which was 76.99% of the total New Mexico population. Among all New Mexico counties, Bernalillo had the highest voting-age population (528.74K), followed by Doña Ana (164.67K), and Santa Fe (126.30K).

On the other hand, the counties with the least voting-age population were: Harding (464), De Baca (1.15K), and Catron (3.12K).

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

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

Related Topics: New Mexico ACS-5Yrs Estimates, 2021 Topic List.

Data Source: US Census - ACS 5-Year Estimates, 2021 Census.

New Mexico Voting-age Population By County in 2021

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County	Voting-age Population	% of County Population
Bernalillo	528737	78.34
Catron	3118	87.07
Chaves	47971	73.79
Cibola	20895	76.58
Colfax	10125	81.61
Curry	35773	73.43
De Baca	1148	61.29
Doña Ana	164674	75.48
Eddy	44730	73.21
Grant	22630	80.31
Guadalupe	3615	80.96
Harding	464	87.05
Hidalgo	3286	77.98
Lea	50632	69.60
Lincoln	16573	82.52
Los Alamos	14932	77.90
Luna	18456	73.00
McKinley	52020	71.31
Mora	3745	88.49
Otero	51706	76.83
Quay	6700	77.23
Rio Arriba	30993	76.82
Roosevelt	14532	75.60
Sandoval	113243	76.86
San Juan	90415	73.56
San Miguel	22382	81.82
Santa Fe	126303	82.21
Sierra	9679	84.08
Socorro	12854	77.41
Taos	28313	82.49
Torrance	11927	78.73
Union	3272	79.38
Valencia	58197	76.58