Jefferson County, KY — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
777,392
Male
378,058
48.6%
Female
399,334
51.4%
Median Age
38.4 yrs
Avg Household Size
2.3
Foreign Born
9.5%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher25.4%
High School or Higher43.4%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.0%
Disability
0.0%
Non-English Home
5.9%
Married
37.1%
Jefferson County, KY has a population of 777,392 according to 2023 Census Bureau estimates. The median age is 38.4 years. The largest racial or ethnic group is White at 65.3% of the population. 25.4% of residents hold a bachelor's degree or higher. 9.5% of residents are foreign-born.