Ranking of Iowa 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 Iowa (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 30.61%. Among all Iowa congressional districts, IA CD 4 had the highest percentage of its population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (32.77%), followed by IA CD 1 (32.32%), and IA CD 2 (30.88%).
The chart below shows the top 4 Iowa congressional districts, and the table below shows the ranking of all Iowa 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.
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Related Topics: Iowa ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Iowa 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 | IA Congressional District 4 | 32.77 |
| 2 | IA Congressional District 1 | 32.32 |
| 3 | IA Congressional District 2 | 30.88 |
| 4 | IA Congressional District 3 | 26.88 |