Connecticut Educational Attainment By Race and Ethnicity for Ages 25 years and Above in 2021 (ACS-5Yrs)

Updated on August 19, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the Connecticut population aged 25 years and above was 2,515,137. See the following sections for the breakdown of the educational attainment of this important demography by race and ethnicity.

Less high school diploma: there were 225,021 people without a high school diploma (ie. 8.95% of people aged 25yrs+). The race composition of this group includes, 54.53% White Alone, and 13.90% Black Alone.

High School Graduate or Equivalent: there were 656,949 people with a high school diploma or equivalent (ie. 26.12% of people aged 25yrs+). The race composition of this group includes, 72.79% White Alone, and 13.02% Black Alone.

Some College or Associates Degree: there were 613,201 people with some college courses without a degree or an associates degree (ie. 24.38% of people aged 25yrs+). The race composition of this group includes, 76.01% White Alone, and 12.31% Black Alone.

Bachelors Degree or higher: there were 1,019,966 people with a bachelors degree or a higher degree (ie. 40.55% of people aged 25yrs+). The race composition of this group includes, 81.15% White Alone, and 6.01% Black Alone.

The first and second charts below shows the race and ethnicity composition at each educational level. Also see tables below for the population and percentages per race and per ethnicity for each educational level.

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

Educational Attainment of Connecticut Population (aged 25yrs+) By Race in 2021
Less HS Dipl.
HS Grad. or Equiv.
Some Coll. or AA
Bachelors+
Educational Attainment of Connecticut Population (aged 25yrs+) By Ethnicity in 2021
Less HS Dipl.
HS Grad. or Equiv.
Some Coll. or AA
Bachelors+
Connecticut Population (aged 25yrs+) with Less than High School Diploma Per Race in 2021
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Race Population Percent (%)
White Alone 122703 54.53
Black Alone 31283 13.90
Asian Alone 11299 5.02
American Indian & Alaska Native Alone 1215 0.54
Native Hawaiian & Pac. Islander Alone 136 0.06
Some Other Race Alone 41694 18.53
Two or More Races 16691 7.42
Connecticut Population (aged 25yrs+) with Less than High School Diploma Per Ethnicity in 2021
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Ethnicity Population Percent (%)
Non-Hispanic White Alone 87354 38.82
Hispanic or Latino of All Races 92703 41.20
All Other Ethnicities 44964 19.98
Connecticut Population (aged 25yrs+) with High School Diploma or Equivalent Per Race in 2021
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Race Population Percent (%)
White Alone 478197 72.79
Black Alone 85508 13.02
Asian Alone 14292 2.18
American Indian & Alaska Native Alone 1377 0.21
Native Hawaiian & Pac. Islander Alone 515 0.08
Some Other Race Alone 45140 6.87
Two or More Races 31920 4.86
Connecticut Population (aged 25yrs+) with High School Diploma or Equivalent Per Ethnicity in 2021
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Ethnicity Population Percent (%)
Non-Hispanic White Alone 433615 66.00
Hispanic or Latino of All Races 111621 16.99
All Other Ethnicities 111713 17.01
Connecticut Population (aged 25yrs+) with Some College Courses or an Associates Degree Per Race in 2021
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Race Population Percent (%)
White Alone 466113 76.01
Black Alone 75484 12.31
Asian Alone 12918 2.11
American Indian & Alaska Native Alone 1787 0.29
Native Hawaiian & Pac. Islander Alone 94 0.02
Some Other Race Alone 28225 4.60
Two or More Races 28580 4.66
Connecticut Population (aged 25yrs+) with Some College Courses or an Associates Degree Per Ethnicity in 2021
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Ethnicity Population Percent (%)
Non-Hispanic White Alone 429242 70.00
Hispanic or Latino of All Races 83759 13.66
All Other Ethnicities 100200 16.34
Connecticut Population (aged 25yrs+) with a Bachelors Degree or Higher Per Race in 2021
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Race Population Percent (%)
White Alone 827701 81.15
Black Alone 61342 6.01
Asian Alone 75789 7.43
American Indian & Alaska Native Alone 1222 0.12
Native Hawaiian & Pac. Islander Alone 232 0.02
Some Other Race Alone 18216 1.79
Two or More Races 35464 3.48
Connecticut Population (aged 25yrs+) with a Bachelors Degree or Higher Per Ethnicity in 2021
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Ethnicity Population Percent (%)
Non-Hispanic White Alone 796640 78.11
Hispanic or Latino of All Races 63456 6.22
All Other Ethnicities 159870 15.67