Jefferson County, Kentucky Information & Statistics

Quick Facts

The 2018 population estimate for Jefferson County is 767,154, a change of 2.09% when compared to 2014. With an area of 380.69 square miles, this works out to a population density of 2,015.18 persons/mi2.
The number of households in 2018 were estimated to be 310,318, with an average household size of 2.42.
Jefferson County's 2018 unemployment rate was 5.85%.
The average household income in Jefferson County for 2018 was $76,517, while the median was $54,357.

Jefferson County Population Trends

Jefferson County Employment Type

Jefferson County Age Grouping

Jefferson County Ethnicity Mix

Jefferson County Fertility Rate

10,021 estimated births

Jefferson County Household Characteristics

Jefferson County Median Age over Time

Jefferson County Households with Children by Age

Jefferson County Median Household Income

Jefferson County Educational Attainment

Jefferson County Unemployment Rate

Type of Housing

Jefferson County Housing Values

Median mortgage payment for 2018: $1,288

Jefferson County Average Rent as Percentage of Gross Income

Median rent for 2018: $834

Jefferson County Average Commute

Jefferson County Primary Transportation

Jefferson County Gender Mix

Jefferson County Field of Employment

Jefferson County Population Data

Period Geography Population
2014 Jefferson County, Kentucky 751,485
2015 Jefferson County, Kentucky 755,809
2016 Jefferson County, Kentucky 759,724
2017 Jefferson County, Kentucky 764,378
2018 Jefferson County, Kentucky 767,154