How Arapahoe County Compares

Arapahoe County

37.3 years

Colorado Average

37.3 years

Rank #57 of 64 in state

National

38.9 years

4.1% below

National Distribution

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

21.4 years 86.2 years

■ Arapahoe County: 37.3 years

Ranking Context

Rank	County	Value
#2,694	King County, WA	37.4 years
#2,695	Mississippi County, AR	37.3 years
#2,696	San Diego County, CA	37.3 years
#2,697	Arapahoe County, CO	37.3 years
#2,698	Lake County, CO	37.3 years
#2,699	Toombs County, GA	37.3 years
#2,700	Hardin County, KY	37.3 years

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Median Age in Arapahoe County, Colorado

Arapahoe County, Colorado has a median age of 37.3 years, which ranks #2,697 of 3,222 out of 3,222 counties nationwide. This is 4.1% below the national value of 38.9 years.

Within Colorado, Arapahoe County ranks #57 of 64 out of 64 counties. This places it in the 16th 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.