Counties in Iowa by median age
Dickinson County had the highest median age of 99 counties in 2023, at 48.1 years. Story County had the lowest, at 27 years. The median was 42.2 years and the figure for Iowa was 38.6 years. Source: the U.S. Census Bureau.
Top 40 counties, 2023
Full ranking
Other periods
About this ranking
Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
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 B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b01002.dat. Retrieved 2026-10-08.Use this data in your AI agent
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Rank Counties in Iowa by median age using official data, and cite the source.
rank_places {"indicator":"median_age","level":"province","within":"Iowa","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=median_age&level=province&within=Iowa&limit=10Questions
Which county has the highest median age?
Dickinson County, with 48.1 years in 2023, according to the U.S. Census Bureau.
Which county has the lowest median age?
Story County, with 27 years in 2023.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.
Median age: other rankings
- EU countries
- US states
- EU regions (NUTS 2)
- US counties
- Autonomous communities of Spain
- Provinces of Spain
- Regions of Germany (NUTS 2)
- Regions of France (NUTS 2)
- Regions of Italy (NUTS 2)
- Regions of Poland (NUTS 2)
- Regions of Greece (NUTS 2)
- Regions of Netherlands (NUTS 2)
Counties in Iowa: more rankings
- Asian population share
- Bachelor's degree or higher, population 25 and over
- 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 gross rent (monthly)
- Median home value
- Median household income