Data / Rankings / Bachelor's degree or higher, population 25 and over / Counties in Iowa

Counties in Iowa by share of adults with a bachelor's degree

Johnson County had the highest share of adults with a bachelor's degree of 99 counties in 2023, at 54.6%. Lucas County had the lowest, at 14.5%. The median was 21.6% and the figure for Iowa was 30.9%. Source: the U.S. Census Bureau.

Full ranking

Other periods

• 2024
• 2023
• 2022
• 2021

About this ranking

People aged 25 and over whose highest degree is a bachelor's, master's, professional school or doctorate degree, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Excludes associate degrees and college without a degree. Not comparable with EU tertiary attainment, which includes short-cycle tertiary education and usually covers ages 25 to 64. Calculated from counts in ACS table B15003, which are stored as inputs.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a bachelor's degree or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat. Retrieved 2026-10-09.

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Bachelor's degree or higher, population 25 and over: other rankings

• US states
• US counties
• Counties in Texas
• Counties in Georgia
• Counties in Virginia
• Counties in Kentucky
• Counties in Missouri
• Counties in Kansas
• Counties in Illinois
• Counties in North Carolina
• Counties in Tennessee
• Counties in Nebraska

Counties in Iowa: more rankings

• Asian population share
• Live births, July to June
• Black or African American population share
• Crude birth rate, July to June
• Crude death rate, July to June
• Deaths, July to June
• Foreign-born population share
• Real GDP growth
• GDP per capita, US dollars
• Gross domestic product (GDP), US dollars
• Hispanic or Latino population share
• Homeownership rate (US, housing units)
• Median age
• Median gross rent (monthly)
• Median home value
• Median household income