New Mexico Population By County in 2021

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2021, the population of New Mexico was 2,116,677. Among all New Mexico counties, Bernalillo[object Promise] had the highest population (674,980), followed by Doña Ana[object Promise] (221,655), and Santa Fe[object Promise] (155,404). Harding[object Promise] was the least populated county (636).

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 674980 31.89
Catron 3726 0.18
Chaves 64644 3.05
Cibola 27238 1.29
Colfax 12356 0.58
Curry 47960 2.27
De Baca 1679 0.08
Doña Ana 221655 10.47
Eddy 60899 2.88
Grant 27892 1.32
Guadalupe 4432 0.21
Harding 636 0.03
Hidalgo 4090 0.19
Lea 73103 3.45
Lincoln 20421 0.97
Los Alamos 19340 0.91
Luna 25486 1.20
McKinley 71484 3.38
Mora 4203 0.20
Otero 68538 3.24
Quay 8624 0.41
Rio Arriba 40249 1.90
Roosevelt 19017 0.90
Sandoval 151439 7.16
San Juan 120866 5.71
San Miguel 27167 1.28
Santa Fe 155404 7.34
Sierra 11498 0.54
Socorro 16303 0.77
Taos 34700 1.64
Torrance 15318 0.72
Union 4097 0.19
Valencia 77233 3.65