Louisville/Jefferson County, Kentucky

Louisville/Jefferson County population, 2020 to 2024

Louisville/Jefferson County added 8,949 residents from July 2020 to July 2024, a change of +1.4%. In the latest year it moved by +8,634. Among 79 Kentucky places of 5,000 or more, that growth ranks 46th; the median place changed by +2.0%. The median place of 5,000+ in Kentucky has 10,541 people, so Louisville/Jefferson County is 60.8 times that size.

Louisville/Jefferson County covers 263.04 square miles of land and 11.65 of water, for 2,436 people per square mile of land. The median Kentucky place of 5,000+ has 1,588, so Louisville/Jefferson County is denser than the typical town.

What county Louisville/Jefferson County is in

All of Louisville/Jefferson County's residents live in Jefferson County, which had 793,881 residents in 2024. Louisville/Jefferson County holds 80.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Louisville/Jefferson County

23 ZIP Code Tabulation Areas (ZCTAs) overlap Louisville/Jefferson County by at least 10% of the ZCTA's or the city's land: 40023, 40059, 40118, 40207, 40209, 40211, 40213, 40214, 40216, 40218, 40219, 40220, 40222, 40223, 40228, 40229, 40241, 40242, 40245, 40258, 40272, 40291, 40299. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Louisville/Jefferson County is

The Census internal point of Louisville/Jefferson County is at 38.165400, -85.647400. Frankfort, the capital, is 42.0 miles E in a straight line. The nearest larger place is Indianapolis, IN (891,484 people), 114.5 miles away. The nearest city of 100,000 or more is Lexington-Fayette, KY, 65.2 miles away. The ground at the internal point is about 174 m (571 ft) above sea level.

Daylight in Louisville/Jefferson County

At 38.17° N, Louisville/Jefferson County gets about 14 h 49 min of daylight around the June solstice and 9 h 31 min around the December solstice, a swing of 5 h 19 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026. Month-by-month sunrise and sunset times are on the Louisville/Jefferson County daylight page.

Places near Louisville/Jefferson County

The eight nearest incorporated places of 1,000+ in Kentucky, measured between internal points. The closest is West Buechel, 2.3 miles away, with 1,393 people.