How Mercer County Compares

Mercer County

45.1 years

Pennsylvania Average

45.1 years

Rank #20 of 67 in state

National

38.9 years

15.9% above

National Distribution

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

21.4 years 86.2 years

■ Mercer County: 45.1 years

Ranking Context

Rank	County	Value
#727	Marshall County, KY	45.1 years
#728	Houston County, MN	45.1 years
#729	Pierce County, ND	45.1 years
#730	Mercer County, PA	45.1 years
#731	Tioga County, PA	45.1 years
#732	Wyoming County, PA	45.1 years
#733	Hardin County, TN	45.1 years

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Median Age in Mercer County, Pennsylvania

Mercer County, Pennsylvania has a median age of 45.1 years, which ranks #730 of 3,222 out of 3,222 counties nationwide. This is 15.9% above the national value of 38.9 years.

Within Pennsylvania, Mercer County ranks #20 of 67 out of 67 counties. This places it in the 77th 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.