Ranking of Delaware Counties By Percentage of American Indian and Alaska Native Alone 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 Delaware American Indian and Alaska Native Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 21.67%. Among all Delaware counties, Kent County had the highest percentage of its American Indian and Alaska Native Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (32.58%), followed by Sussex County (17.20%), and New Castle County (15.13%).

The chart below shows the top 3 Delaware counties, and the table below shows the ranking of all Delaware 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 Delaware Counties By Percentage of American Indian and Alaska Native Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Kent County
Sussex County
New Castle County
Ranking of Delaware Counties By Percentage of American Indian and Alaska Native Alone 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 Kent County 32.58
2 Sussex County 17.20
3 New Castle County 15.13