Ranking of Connecticut Counties By Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)

Based on the US Census ACS-5Yrs estimates, in 2021, the population of Connecticut (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 225,021. Among all Connecticut counties, Fairfield County had the highest population (aged 25 years and above) with an educational attainment of Less than High School Diploma (64,225), followed by Hartford County (60,946), and New Haven County (58,496).

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.

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