Ranking of New Mexico Counties By Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of New Mexico (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 188,715. Among all New Mexico counties, Bernalillo County had the highest population (aged 25 years and above) with an educational attainment of Less than High School Diploma (45,471), followed by Doña Ana County (25,731), and Santa Fe County (11,417).
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 Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Bernalillo County | 45471 |
| 2 | Doña Ana County | 25731 |
| 3 | Santa Fe County | 11417 |
| 4 | San Juan County | 11330 |
| 5 | Lea County | 10313 |
| 6 | McKinley County | 9492 |
| 7 | Sandoval County | 8793 |
| 8 | Chaves County | 8378 |
| 9 | Valencia County | 7836 |
| 10 | Eddy County | 6690 |
| 11 | Otero County | 6138 |
| 12 | Curry County | 5770 |
| 13 | Luna County | 4742 |
| 14 | Rio Arriba County | 3797 |
| 15 | Cibola County | 3343 |
| 16 | San Miguel County | 3022 |
| 17 | Grant County | 2601 |
| 18 | Taos County | 2051 |
| 19 | Roosevelt County | 1905 |
| 20 | Socorro County | 1747 |
| 21 | Lincoln County | 1519 |
| 22 | Torrance County | 1313 |
| 23 | Quay County | 974 |
| 24 | Sierra County | 958 |
| 25 | Colfax County | 953 |
| 26 | Guadalupe County | 564 |
| 27 | Hidalgo County | 493 |
| 28 | Union County | 453 |
| 29 | Mora County | 276 |
| 30 | Los Alamos County | 248 |
| 31 | De Baca County | 192 |
| 32 | Catron County | 151 |
| 33 | Harding County | 54 |