Ranking of New Mexico Counties By Population in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the Population for New Mexico was 2.12M. Among all New Mexico counties, Bernalillo County had the highest population (675.29K), followed by Do�a Ana County (221.73K), and Santa Fe County (155.40K).

The chart below shows the top 10 counties, and the table below shows the ranking of all New Mexico counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of New Mexico Counties By Population in 2021
Bernalillo
Do�a Ana
Santa Fe
Sandoval
San Juan
Valencia
Lea
McKinley
Otero
Chaves
Ranking of New Mexico Counties By Population in 2021
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Rank County Population
1 Bernalillo County 675286
2 Do�a Ana County 221732
3 Santa Fe County 155400
4 Sandoval County 151478
5 San Juan County 120996
6 Valencia County 77315
7 Lea County 73062
8 McKinley County 71464
9 Otero County 68486
10 Chaves County 64650
11 Eddy County 60855
12 Curry County 47936
13 Rio Arriba County 40216
14 Taos County 34685
15 Grant County 27893
16 Cibola County 27185
17 San Miguel County 27155
18 Luna County 25471
19 Lincoln County 20400
20 Los Alamos County 19390
21 Roosevelt County 18992
22 Socorro County 16291
23 Torrance County 15313
24 Colfax County 12346
25 Sierra County 11519
26 Quay County 8620
27 Guadalupe County 4423
28 Mora County 4189
29 Union County 4096
30 Hidalgo County 4086
31 Catron County 3710
32 De Baca County 1679
33 Harding County 631