How Jefferson County Compares

Jefferson County

38.4 years

Kentucky Average

38.4 years

Rank #105 of 120 in state

National

38.9 years

1.3% below

National Distribution

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

21.4 years 86.2 years

■ Jefferson County: 38.4 years

Ranking Context

Rank	County	Value
#2,500	Jackson County, IN	38.4 years
#2,501	Putnam County, IN	38.4 years
#2,502	Butler County, KS	38.4 years
#2,503	Jefferson County, KY	38.4 years
#2,504	Concordia Parish, LA	38.4 years
#2,505	Grant Parish, LA	38.4 years
#2,506	Chickasaw County, MS	38.4 years

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Median Age in Jefferson County, Kentucky

Jefferson County, Kentucky has a median age of 38.4 years, which ranks #2,503 of 3,222 out of 3,222 counties nationwide. This is 1.3% below the national value of 38.9 years.

Within Kentucky, Jefferson County ranks #105 of 120 out of 120 counties. This places it in the 22th 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.