Louisville/Jefferson County, KY-IN Metro Area
The Louisville/Jefferson County, KY-IN metro area is made up of 12 counties in Kentucky and Indiana; the largest are Jefferson County, Clark County, and Bullitt County. About 1,402,509 people lived there on July 1, 2025 (Census estimate), 3.0% more than in April 2020.
- Population, July 2025
- 1,402,509 3.0% more than in April 2020
- Type
- Metropolitan statistical area
- Counties
- 12: 5 central, 7 outlying
- Land area
- 3,961 sq mi (10,259 km²)
- Time zone
- Eastern Time, Eastern Time, Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Combined statistical area
- Louisville/Jefferson County--Elizabethtown, KY-IN
- CBSA code
- 31140
Counties in the Louisville/Jefferson County, KY-IN metro area, largest first
| County | Role | Population, July 2025 | Share of the area |
|---|---|---|---|
| Jefferson CountyKentucky | Central | 795,222 | 56.7% |
| Clark CountyIndiana | Central | 130,451 | 9.3% |
| Bullitt CountyKentucky | Central | 86,454 | 6.2% |
| Floyd CountyIndiana | Central | 82,153 | 5.9% |
| Oldham CountyKentucky | Central | 70,986 | 5.1% |
| Shelby CountyKentucky | Outlying | 51,243 | 3.7% |
| Nelson CountyKentucky | Outlying | 49,036 | 3.5% |
| Harrison CountyIndiana | Outlying | 40,437 | 2.9% |
| Meade CountyKentucky | Outlying | 30,699 | 2.2% |
| Washington CountyIndiana | Outlying | 28,383 | 2.0% |
| Spencer CountyKentucky | Outlying | 20,998 | 1.5% |
| Henry CountyKentucky | Outlying | 16,447 | 1.2% |
A central county holds the area’s core, an urban area of at least 50,000 people. An outlying county is in the area because of commuting: at least a quarter of its workers have jobs in the central counties, or at least a quarter of the people working there live in them. A county belongs to one metro or micro area at most, and it counts whole, countryside included.
Principal city
- Louisville/
Jefferson County 631,818 people
OMB names the area after its largest principal cities. A principal city is the area’s largest city, plus any other city that is very large or a big job center, and smaller ones with at least as many jobs as working residents (2020 Census and commuting figures). People counts are American Community Survey 2020–2024 5-year estimates.
Part of the Louisville/Jefferson County--Elizabethtown, KY-IN combined statistical area
OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other area in this one is
- Elizabethtown, KY Metro Area128,666 people
Bordering metro and micro areas, nearest first
Areas with a county on this area’s edge. Distances are straight lines between the areas’ largest cities.
- Elizabethtown, KY Metro Area34 mi south
- Frankfort, KY Micro Area42 mi east
- Madison, IN Micro Area43 mi north
- Seymour, IN Micro Area56 mi north
- Bedford, IN Micro Area66 mi northwest
Before using this answer on a form
A metro or micro area is a statistical area that OMB draws for federal statistics. It is not a city, a local government or a mailing address, and it is not a measure of urban and rural: whole counties count, rural parts included. Programs that use metro areas, such as housing income limits or wage rates, can use their own version of these lists; check the program’s own list for an address.
Find the metro area where you are now, find your county, or see every metro and micro area by population.