Ranking of Connecticut 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 Connecticut Black or African American Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 85,508. Among all Connecticut counties, New Haven 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 (28,531), followed by Hartford County (27,627), and Fairfield County (21,876).

The chart below shows the top 8 Connecticut counties, and the table below shows the ranking of all Connecticut 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 Connecticut Counties By Black or African American Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
New Haven County
Hartford County
Fairfield County
New London County
Middlesex County
Litchfield County
Tolland County
Windham County
Ranking of Connecticut 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 Haven County 28531
2 Hartford County 27627
3 Fairfield County 21876
4 New London County 3398
5 Middlesex County 1997
6 Litchfield County 812
7 Tolland County 786
8 Windham County 481