Ranking of Arizona Counties By Percentage of Two Or More Races Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)

Updated on September 5, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Arizona Two Or More Races population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 19.51%. Among all Arizona counties, Yuma County had the highest percentage of its Two Or More Races population (aged 25 years and above) with an educational attainment of Less than High School Diploma (33.39%), followed by Greenlee County (28.18%), and Santa Cruz County (28.14%).

The chart below shows the top 10 Arizona counties, and the table below shows the ranking of all Arizona counties.

You can see similar information for other educational attainments, and for other races and ethnicities.

You can also see similar information for other states and for the United States.

Ranking of Arizona Counties By Percentage of Two Or More Races Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Yuma County
Greenlee County
Santa Cruz County
Navajo County
Graham County
La Paz County
Maricopa County
Yavapai County
Pima County
Gila County
Ranking of Arizona Counties By Percentage of Two Or More Races Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Yuma County 33.39
2 Greenlee County 28.18
3 Santa Cruz County 28.14
4 Navajo County 25.53
5 Graham County 24.67
6 La Paz County 23.89
7 Maricopa County 20.15
8 Yavapai County 18.14
9 Pima County 16.59
10 Gila County 14.52
11 Cochise County 13.96
12 Pinal County 13.22
13 Apache County 13.04
14 Coconino County 8.89
15 Mohave County 8.69