How Buchanan County Compares

Buchanan County

40.3 years

Iowa Average

40.3 years

Rank #71 of 99 in state

National

38.9 years

3.6% above

National Distribution

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

21.4 years 86.2 years

■ Buchanan County: 40.3 years

Ranking Context

Rank	County	Value
#2,021	Rock Island County, IL	40.3 years
#2,022	Dubois County, IN	40.3 years
#2,023	Jennings County, IN	40.3 years
#2,024	Buchanan County, IA	40.3 years
#2,025	Logan County, KY	40.3 years
#2,026	Cottonwood County, MN	40.3 years
#2,027	Leake County, MS	40.3 years

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Median Age in Buchanan County, Iowa

Buchanan County, Iowa has a median age of 40.3 years, which ranks #2,024 of 3,222 out of 3,222 counties nationwide. This is 3.6% above the national value of 38.9 years.

Within Iowa, Buchanan County ranks #71 of 99 out of 99 counties. This places it in the 37th 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.