New Mexico Population By County (2018)
Created on February 25, 2020.
Data Updated on May 9, 2021.

According to the US Census Bureau population estimates, there were 2,092,741 people living in New Mexico in 2018. Bernalillo County was the most populated county with 678,034 residents, followed by Doña Ana County with 217,278 residents, and Santa Fe County with 149,761 residents. Harding County with a population of 650 was the least populated county in New Mexico in 2018.

Use the map below to interactively explore the population of each county in New Mexico in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
New Mexico Population By County (2018)
Table of New Mexico Population By County (2018)
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County Population % of State Population
Bernalillo 678,034 32.40%
Catron 3,554 0.17%
Chaves 64,554 3.09%
Cibola 26,766 1.28%
Colfax 12,071 0.58%
Curry 49,338 2.36%
De Baca 1,779 0.09%
Doña Ana 217,278 10.38%
Eddy 57,729 2.76%
Grant 27,303 1.31%
Guadalupe 4,334 0.21%
Harding 650 0.03%
Hidalgo 4,231 0.20%
Lea 69,543 3.32%
Lincoln 19,518 0.93%
Los Alamos 18,988 0.91%
Luna 23,877 1.14%
McKinley 71,911 3.44%
Mora 4,487 0.21%
Otero 66,659 3.19%
Quay 8,242 0.39%
Rio Arriba 39,023 1.87%
Roosevelt 18,759 0.90%
Sandoval 145,096 6.93%
San Juan 125,499 6.00%
San Miguel 27,480 1.31%
Santa Fe 149,761 7.16%
Sierra 10,949 0.52%
Socorro 16,704 0.80%
Taos 32,699 1.56%
Torrance 15,512 0.74%
Union 4,108 0.20%
Valencia 76,305 3.65%