Decatur, IL Metro Area Educational Attainment and Per Gender for Ages 25 years and Above in 2021 (ACS-5Yrs)

Updated on August 30, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the Decatur, IL Metro Area population aged 25 years and above was 71,824. Among this population, 5.93K of them (8.25%) had an education level of Less than High School Diploma; and 25.42K of them (35.40%) had an education level of High School Graduate or Equivalent.

The first chart and table below shows the population and percentages of the Decatur, IL Metro Area population aged 25 years and above by educational attainment.

You can find the educational attainment information about the Decatur, IL Metro Area male and female population below.

You can see similar information for other metro statistical areas (MSAs) and for the United States.

Percentage of Decatur, IL Metro Area Population 25 years and above By Educational Attainment in 2021
Less HS Dipl.
HS Grad. or Equiv.
Some Coll. or AA
Bachelors+
Educational Attainment For Decatur, IL Metro Area Population Aged 25 years and above in 2021
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Educational Level Population Percent (%)
Less than High School Diploma 5926 8.25
High School Graduate or Equivalent 25424 35.40
Some College or Associates Degree 23622 32.89
Bachelors or Higher 16852 23.46

Male Population

The Decatur, IL Metro Area male population aged 25 years and above was 33,816. Among this population, 3.10K of them (9.16%) had an education level of Less than High School Diploma; and 12.36K of them (36.55%) had an education level of High School Graduate or Equivalent.

The chart and table below shows the population and percentages of the Decatur, IL Metro Area male population aged 25 years and above by educational attainment.

Percentage of Decatur, IL Metro Area Male Population 25 years and above By Educational Attainment in 2021
Less HS Dipl.
HS Grad. or Equiv.
Some Coll. or AA
Bachelors+
Educational Attainment For Decatur, IL Metro Area Male Pop. Aged 25 years and above in 2021
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Educational Level Population Percent (%)
Less than High School Diploma 3098 9.16
High School Graduate or Equivalent 12358 36.55
Some College or Associates Degree 10881 32.18
Bachelors or Higher 7479 22.12

Female Population

The Decatur, IL Metro Area female population aged 25 years and above was 38,008. Among this population, 2.83K of them (7.44%) had an education level of Less than High School Diploma; and 13.07K of them (34.38%) had an education level of High School Graduate or Equivalent.

The chart and table below shows the population and percentages of the Decatur, IL Metro Area female population aged 25 years and above by educational attainment.

Percentage of Decatur, IL Metro Area Female Population 25 years and above By Educational Attainment in 2021
Less HS Dipl.
HS Grad. or Equiv.
Some Coll. or AA
Bachelors+
Educational Attainment For Decatur, IL Metro Area Female Pop. Aged 25 years and above in 2021
Items per page:
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Educational Level Population Percent (%)
Less than High School Diploma 2828 7.44
High School Graduate or Equivalent 13066 34.38
Some College or Associates Degree 12741 33.52
Bachelors or Higher 9373 24.66