New Mexico Population By County in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the population of New Mexico was 2,116,950. Among all New Mexico counties, Bernalillo had the highest population (675,286), followed by Do�a Ana (221,732), and Santa Fe (155,400). Harding was the least populated county (631).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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

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New Mexico Population By County in 2021
New Mexico Population By County in 2021
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County Population % of State Population
Bernalillo 675286 31.90
Catron 3710 0.18
Chaves 64650 3.05
Cibola 27185 1.28
Colfax 12346 0.58
Curry 47936 2.26
De Baca 1679 0.08
Do�a Ana 221732 10.47
Eddy 60855 2.88
Grant 27893 1.32
Guadalupe 4423 0.21
Harding 631 0.03
Hidalgo 4086 0.19
Lea 73062 3.45
Lincoln 20400 0.96
Los Alamos 19390 0.92
Luna 25471 1.20
McKinley 71464 3.38
Mora 4189 0.20
Otero 68486 3.24
Quay 8620 0.41
Rio Arriba 40216 1.90
Roosevelt 18992 0.90
Sandoval 151478 7.16
San Juan 120996 5.72
San Miguel 27155 1.28
Santa Fe 155400 7.34
Sierra 11519 0.54
Socorro 16291 0.77
Taos 34685 1.64
Torrance 15313 0.72
Union 4096 0.19
Valencia 77315 3.65