Ranking of New Mexico Counties By Percentage of Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the population of New Mexico (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 26.03%. Among all New Mexico counties, Guadalupe County had the highest percentage of its population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (49.48%), followed by Union County (43.47%), and Catron County (41.80%).
The chart below shows the top 10 New Mexico counties, and the table below shows the ranking of all New Mexico counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: New Mexico ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of New Mexico Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | Guadalupe County | 49.48 |
| 2 | Union County | 43.47 |
| 3 | Catron County | 41.80 |
| 4 | Socorro County | 40.48 |
| 5 | Quay County | 40.45 |
| 6 | Mora County | 38.86 |
| 7 | Hidalgo County | 38.07 |
| 8 | Torrance County | 37.92 |
| 9 | McKinley County | 36.32 |
| 10 | Luna County | 35.61 |
| 11 | Sierra County | 35.49 |
| 12 | Rio Arriba County | 35.19 |
| 13 | Lea County | 32.56 |
| 14 | Cibola County | 32.27 |
| 15 | Valencia County | 31.67 |
| 16 | Colfax County | 31.58 |
| 17 | Eddy County | 31.31 |
| 18 | Roosevelt County | 31.17 |
| 19 | Lincoln County | 30.33 |
| 20 | San Juan County | 30.21 |
| 21 | Otero County | 29.14 |
| 22 | Harding County | 28.78 |
| 23 | Grant County | 27.30 |
| 24 | De Baca County | 27.19 |
| 25 | Taos County | 26.75 |
| 26 | Chaves County | 26.54 |
| 27 | Sandoval County | 24.95 |
| 28 | San Miguel County | 24.85 |
| 29 | Curry County | 24.21 |
| 30 | Bernalillo County | 22.41 |
| 31 | Santa Fe County | 21.75 |
| 32 | Doña Ana County | 21.53 |
| 33 | Los Alamos County | 9.74 |