How Seneca County Compares

Seneca County

40.2 years

Ohio Average

40.2 years

Rank #63 of 88 in state

National

38.9 years

3.3% above

National Distribution

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

21.4 years 86.2 years

■ Seneca County: 40.2 years

Ranking Context

Rank	County	Value
#2,063	Gentry County, MO	40.2 years
#2,064	Newton County, MO	40.2 years
#2,065	Kearney County, NE	40.2 years
#2,066	Seneca County, OH	40.2 years
#2,067	Cumberland County, PA	40.2 years
#2,068	Erie County, PA	40.2 years
#2,069	Butte County, SD	40.2 years

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Median Age in Seneca County, Ohio

Seneca County, Ohio has a median age of 40.2 years, which ranks #2,066 of 3,222 out of 3,222 counties nationwide. This is 3.3% above the national value of 38.9 years.

Within Ohio, Seneca County ranks #63 of 88 out of 88 counties. This places it in the 36th 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.