Ranking of New Mexico Counties By Percentage of Population with Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 129.66K people in New Mexico with Irish ancestry (6.15% of New Mexico population). Among all New Mexico counties, De Baca County had the highest percentage of its population with Irish ancestry (11.21%), followed by Colfax County (10.98%), and Catron County (10.50%).

The chart and table below shows the top 10 counties with high percentage of its population having Irish ancestry.

You can see similar information for other states and for other ancestry groups in New Mexico.

Data Source: US Census Bureau.
Ranking of New Mexico Counties By Percentage of Population with Irish Ancestry in 2021
De Baca County
Colfax County
Catron County
Lincoln County
Union County
Los Alamos County
Grant County
Quay County
Sierra County
Taos County
Ranking of New Mexico Counties By Percentage of Population with Irish Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 De Baca County 11.21
2 Colfax County 10.98
3 Catron County 10.50
3 Lincoln County 10.50
4 Union County 9.80
5 Los Alamos County 8.82
6 Grant County 8.62
7 Quay County 8.60
8 Sierra County 8.56
9 Taos County 8.55
10 Otero County 8.37
11 Torrance County 8.14
12 Sandoval County 8.12
13 Roosevelt County 7.88
14 Bernalillo County 7.24
15 Curry County 7.14
15 Hidalgo County 7.14
16 Santa Fe County 6.62
17 Harding County 5.25
18 San Juan County 4.92
19 Doña Ana County 4.71
20 Cibola County 4.61
20 Mora County 4.61
21 Eddy County 4.50
22 Chaves County 4.47
23 Valencia County 4.36
24 Luna County 4.20
25 Socorro County 3.43
26 Lea County 3.38
27 San Miguel County 2.23
28 Guadalupe County 1.77
29 Rio Arriba County 1.55
30 McKinley County 1.51