How Union County Compares

Union County

40.5 years

Iowa Average

40.5 years

Rank #70 of 99 in state

National

38.9 years

4.1% above

National Distribution

Where Union County falls among all 3,222 U.S. counties for median age.

21.4 years 86.2 years

■ Union County: 40.5 years

Ranking Context

Rank	County	Value
#1,948	Berrien County, GA	40.5 years
#1,949	Brantley County, GA	40.5 years
#1,950	Bear Lake County, ID	40.5 years
#1,951	Union County, IA	40.5 years
#1,952	Harvey County, KS	40.5 years
#1,953	Clark County, KY	40.5 years
#1,954	Grayson County, KY	40.5 years

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Median Age in Union County, Iowa

Union County, Iowa has a median age of 40.5 years, which ranks #1,951 of 3,222 out of 3,222 counties nationwide. This is 4.1% above the national value of 38.9 years.

Within Iowa, Union County ranks #70 of 99 out of 99 counties. This places it in the 39th percentile nationally.

The median age of the total population. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.