Rank |
County |
Population (2012) |
1 |
Bernalillo County, New Mexico
|
673,460
|
2 |
Dona Ana County, New Mexico
|
214,445
|
3 |
Santa Fe County, New Mexico
|
146,375
|
4 |
Sandoval County, New Mexico
|
135,588
|
5 |
San Juan County, New Mexico
|
128,529
|
6 |
Valencia County, New Mexico
|
76,631
|
7 |
McKinley County, New Mexico
|
73,016
|
8 |
Lea County, New Mexico
|
66,338
|
9 |
Otero County, New Mexico
|
66,041
|
10 |
Chaves County, New Mexico
|
65,784
|
11 |
Eddy County, New Mexico
|
54,419
|
12 |
Curry County, New Mexico
|
49,938
|
13 |
Rio Arriba County, New Mexico
|
40,318
|
14 |
Taos County, New Mexico
|
32,779
|
15 |
Grant County, New Mexico
|
29,388
|
16 |
San Miguel County, New Mexico
|
28,891
|
17 |
Cibola County, New Mexico
|
27,334
|
18 |
Luna County, New Mexico
|
25,041
|
19 |
Roosevelt County, New Mexico
|
20,419
|
20 |
Lincoln County, New Mexico
|
20,309
|
21 |
Los Alamos County, New Mexico
|
18,159
|
22 |
Socorro County, New Mexico
|
17,603
|
23 |
Torrance County, New Mexico
|
16,021
|
24 |
Colfax County, New Mexico
|
13,223
|
25 |
Sierra County, New Mexico
|
11,895
|
26 |
Quay County, New Mexico
|
8,769
|
27 |
Hidalgo County, New Mexico
|
4,794
|
28 |
Mora County, New Mexico
|
4,705
|
29 |
Guadalupe County, New Mexico
|
4,603
|
30 |
Union County, New Mexico
|
4,431
|
31 |
Catron County, New Mexico
|
3,658
|
32 |
De Baca County, New Mexico
|
1,927
|
33 |
Harding County, New Mexico
|
707
|