Ranking of Illinois Congressional Districts By Percentage of Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)

Updated on September 4, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the population of Illinois (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 25.40%. Among all Illinois congressional districts, IL CD 17 had the highest percentage of its population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (34.18%), followed by IL CD 15 (34.03%), and IL CD 16 (32.94%).

The chart below shows the top 10 Illinois congressional districts, and the table below shows the ranking of all Illinois congressional districts.

You can see similar information for other educational attainments.

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

Ranking of Illinois Congressional Districts By Percentage of Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
IL CD 17
IL CD 15
IL CD 16
IL CD 12
IL CD 13
IL CD 2
IL CD 18
IL CD 3
IL CD 4
IL CD 1
Ranking of Illinois Congressional Districts By Percentage of Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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Rank Congressional District Percentage of Population (Aged 25yrs+) (%)
1 IL Congressional District 17 34.18
2 IL Congressional District 15 34.03
3 IL Congressional District 16 32.94
4 IL Congressional District 12 30.43
5 IL Congressional District 13 30.42
6 IL Congressional District 2 29.49
7 IL Congressional District 18 28.96
8 IL Congressional District 3 28.83
9 IL Congressional District 4 27.86
10 IL Congressional District 1 26.08
11 IL Congressional District 8 24.67
12 IL Congressional District 11 22.74
13 IL Congressional District 14 22.19
14 IL Congressional District 7 21.12
15 IL Congressional District 10 20.02
16 IL Congressional District 6 16.22
17 IL Congressional District 5 16.12
18 IL Congressional District 9 15.15