Ranking of Connecticut Counties By Percentage of Some Other Race 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 Connecticut Some Other Race Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 31.28%. Among all Connecticut counties, Windham County had the highest percentage of its Some Other Race Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (38.01%), followed by Fairfield County (37.07%), and Hartford County (29.33%).

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 Percentage of Some Other Race Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Windham County
Fairfield County
Hartford County
New Haven County
Tolland County
New London County
Litchfield County
Middlesex County
Ranking of Connecticut Counties By Percentage of Some Other Race 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 Windham County 38.01
2 Fairfield County 37.07
3 Hartford County 29.33
4 New Haven County 28.97
5 Tolland County 26.60
6 New London County 19.70
7 Litchfield County 18.41
8 Middlesex County 12.09