Ranking of Delaware Counties By Black or African American Alone Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)

Updated on September 5, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the Delaware Black or African American Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 50,044. Among all Delaware counties, New Castle County had the highest Black or African American Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (34,490), followed by Kent County (8,289), and Sussex County (7,265).

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 Black or African American Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
New Castle County
Kent County
Sussex County
Ranking of Delaware Counties By Black or African American Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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Rank County Number of People
1 New Castle County 34490
2 Kent County 8289
3 Sussex County 7265