Data / Rankings / High school graduate or higher, population 25 and over / Counties in New Mexico

Counties in New Mexico by high school graduate or higher, population 25 and over

Los Alamos County had the highest high school graduate or higher, population 25 and over of 33 counties in 2021, at 98.2%. Luna County had the lowest, at 70.8%. The median was 84.8% and the figure for New Mexico was 86.8%. Source: the U.S. Census Bureau.

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Highest98.2Los Alamos County
Lowest70.8Luna County
Median84.833 counties
New Mexico86.8History

Map of counties, 2021

Bernalillo County: 90.3 %Catron County: 94.8 %Chaves County: 79.9 %Cibola County: 81.8 %Colfax County: 89.7 %Curry County: 80.7 %De Baca County: 80.9 %Doña Ana County: 80.7 %Eddy County: 83 %Grant County: 87.2 %Guadalupe County: 83.7 %Harding County: 86.6 %Hidalgo County: 83.2 %Lea County: 76.2 %Lincoln County: 90.1 %Los Alamos County: 98.2 %Luna County: 70.8 %McKinley County: 79.1 %Mora County: 91.9 %Otero County: 86.3 %Quay County: 84.2 %Rio Arriba County: 86.3 %Roosevelt County: 83.1 %Sandoval County: 91.4 %San Juan County: 85.9 %San Miguel County: 84.7 %Santa Fe County: 90.1 %Sierra County: 89.5 %Socorro County: 83.9 %Taos County: 92.1 %Torrance County: 87.4 %Union County: 84.4 %Valencia County: 84.8 %
  • Under 81
  • 81 to 84
  • 84 to 85
  • 85 to 87
  • 87 to 90
  • 90 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Los Alamos County: 98.2 %Los Alamos County98.2Catron County: 94.8 %Catron County94.8Taos County: 92.1 %Taos County92.1Mora County: 91.9 %Mora County91.9Sandoval County: 91.4 %Sandoval County91.4Bernalillo County: 90.3 %Bernalillo County90.3Lincoln County: 90.1 %Lincoln County90.1Santa Fe County: 90.1 %Santa Fe County90.1Colfax County: 89.7 %Colfax County89.7Sierra County: 89.5 %Sierra County89.5Torrance County: 87.4 %Torrance County87.4Grant County: 87.2 %Grant County87.2Harding County: 86.6 %Harding County86.6Otero County: 86.3 %Otero County86.3Rio Arriba County: 86.3 %Rio Arriba County86.3San Juan County: 85.9 %San Juan County85.9Valencia County: 84.8 %Valencia County84.8San Miguel County: 84.7 %San Miguel County84.7Union County: 84.4 %Union County84.4Quay County: 84.2 %Quay County84.2Socorro County: 83.9 %Socorro County83.9Guadalupe County: 83.7 %Guadalupe County83.7Hidalgo County: 83.2 %Hidalgo County83.2Roosevelt County: 83.1 %Roosevelt County83.1Eddy County: 83 %Eddy County83Cibola County: 81.8 %Cibola County81.8De Baca County: 80.9 %De Baca County80.9Doña Ana County: 80.7 %Doña Ana County80.7Curry County: 80.7 %Curry County80.7Chaves County: 79.9 %Chaves County79.9McKinley County: 79.1 %McKinley County79.1Lea County: 76.2 %Lea County76.2Luna County: 70.8 %Luna County70.8Los Alamos County: 98.2 %Los Alamos County98.2Catron County: 94.8 %Catron County94.8Taos County: 92.1 %Taos County92.1Mora County: 91.9 %Mora County91.9Sandoval County: 91.4 %Sandoval County91.4Bernalillo County: 90.3 %Bernalillo County90.3Lincoln County: 90.1 %Lincoln County90.1Santa Fe County: 90.1 %Santa Fe County90.1Colfax County: 89.7 %Colfax County89.7Sierra County: 89.5 %Sierra County89.5Torrance County: 87.4 %Torrance County87.4Grant County: 87.2 %Grant County87.2Harding County: 86.6 %Harding County86.6Otero County: 86.3 %Otero County86.3Rio Arriba County: 86.3 %Rio Arriba County86.3San Juan County: 85.9 %San Juan County85.9Valencia County: 84.8 %Valencia County84.8San Miguel County: 84.7 %San Miguel County84.7Union County: 84.4 %Union County84.4Quay County: 84.2 %Quay County84.2Socorro County: 83.9 %Socorro County83.9Guadalupe County: 83.7 %Guadalupe County83.7Hidalgo County: 83.2 %Hidalgo County83.2Roosevelt County: 83.1 %Roosevelt County83.1Eddy County: 83 %Eddy County83Cibola County: 81.8 %Cibola County81.8De Baca County: 80.9 %De Baca County80.9Doña Ana County: 80.7 %Doña Ana County80.7Curry County: 80.7 %Curry County80.7Chaves County: 79.9 %Chaves County79.9McKinley County: 79.1 %McKinley County79.1Lea County: 76.2 %Lea County76.2Luna County: 70.8 %Luna County70.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Los Alamos County98.2
2Catron County94.8
3Taos County92.1
4Mora County91.9
5Sandoval County91.4
6Bernalillo County90.3
7Lincoln County90.1
8Santa Fe County90.1
9Colfax County89.7
10Sierra County89.5
11Torrance County87.4
12Grant County87.2
13Harding County86.6
14Otero County86.3
15Rio Arriba County86.3
16San Juan County85.9
17Valencia County84.8
18San Miguel County84.7
19Union County84.4
20Quay County84.2
21Socorro County83.9
22Guadalupe County83.7
23Hidalgo County83.2
24Roosevelt County83.1
25Eddy County83
26Cibola County81.8
27De Baca County80.9
28Doña Ana County80.7
29Curry County80.7
30Chaves County79.9
31McKinley County79.1
32Lea County76.2
33Luna County70.8

Other periods

About this ranking

People aged 25 and over who hold a regular high school diploma, a GED or alternative credential, or any higher level of education, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Measures the adult population, not students: it is not the high school graduation rate of a class. Not comparable with the EU share below upper secondary education, which covers ages 25 to 64.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs (Counties in New Mexico by high school graduate or higher, population 25 and over, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat

MLA 9

American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in New Mexico by high school graduate or higher, population 25 and over, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/new-mexico-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Counties in New Mexico by high school graduate or higher, population 25 and over, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Also distributed by Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/new-mexico-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in New Mexico by high school graduate or higher, population 25 and over, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat, via Invokely: https://invokely.ai/rankings/high-school-graduate-or-higher/new-mexico-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_mexico_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in New Mexico by high school graduate or higher, population 25 and over, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/new-mexico-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in New Mexico by high school graduate or higher, population 25 and over, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat
L2  - https://invokely.ai/rankings/high-school-graduate-or-higher/new-mexico-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/new-mexico-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest high school graduate or higher, population 25 and over?

Los Alamos County, with 98.2% in 2021, according to the U.S. Census Bureau.

Which county has the lowest high school graduate or higher, population 25 and over?

Luna County, with 70.8% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-12.

High school graduate or higher, population 25 and over: other rankings

Counties in New Mexico: more rankings