In 2022, Jefferson County, KY had a population of 779k people with a median age of 38.5 and a median household income of $66,296. Between 2021 and 2022 the population of Jefferson County, KY declined from 780,449 to 779,232, a −0.156% decrease and its median household income grew from $61,633 to $66,296, a 7.57% increase.
The 5 largest ethnic groups in Jefferson County, KY are White (Non-Hispanic) (65.1%), Black or African American (Non-Hispanic) (21.7%), Two+ (Non-Hispanic) (3.41%), Asian (Non-Hispanic) (2.97%), and Two+ (Hispanic) (2.42%).
None of the households in Jefferson County, KY reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
95.2% of the residents in Jefferson County, KY are U.S. citizens.
The largest universities in Jefferson County, KY are University of Louisville (5,751 degrees awarded in 2022), Jefferson Community and Technical College (4,096 degrees), and Galen College of Nursing-Louisville (156471) (1,166 degrees).
In 2022, the median property value in Jefferson County, KY was $222,200, and the homeownership rate was 61.8%.
Most people in Jefferson County, KY drove alone to work, and the average commute time was 22.3 minutes. The average car ownership in Jefferson County, KY was 2 cars per household.
Jefferson County, KY borders Clark County, IN, Floyd County, IN, Harrison County, IN, Bullitt County, KY, Hardin County, KY, Oldham County, KY, Shelby County, KY, and Spencer County, KY.