Louisville population
Louisville, Kentucky had an estimated 641,962 residents on July 1, 2025, the 27th-largest city in the US. That is up 7.5% since the 2010 Census and up 15.9% since 2000.
- Population, July 2025
- 641,962+1.6% since April 2020
- People per sq mile
- 2,441263.0 sq mi of land
- Median age
- 37.716.1% are 65 or older
- Households with kids
- 27.2%with anyone under 18
Population by year, 2000 to 2025
| Year | Population | Change | Basis |
|---|---|---|---|
| 2025 | 641,962 | +773 | Estimate, July 1 |
| 2024 | 641,189 | +7,900 | Estimate, July 1 |
| 2023 | 633,289 | +4,665 | Estimate, July 1 |
| 2022 | 628,624 | +1,042 | Estimate, July 1 |
| 2021 | 627,582 | -4,319 | Estimate, July 1 |
| 2020 | 631,901 | +13,411 | April 2020 estimates base |
| 2019 | 618,490 | -507 | Estimate, July 1 |
| 2018 | 618,997 | -1,186 | Estimate, July 1 |
| 2017 | 620,183 | +2,345 | Estimate, July 1 |
| 2016 | 617,838 | +2,159 | Estimate, July 1 |
| 2015 | 615,679 | +2,789 | Estimate, July 1 |
| 2014 | 612,890 | +2,218 | Estimate, July 1 |
| 2013 | 610,672 | +6,283 | Estimate, July 1 |
| 2012 | 604,389 | +4,387 | Estimate, July 1 |
| 2011 | 600,002 | +2,665 | Estimate, July 1 |
| 2010 | 597,337 | +3,918 | 2010 Census (April 1) |
| 2009 | 593,419 | +5,744 | Estimate, July 1 |
| 2008 | 587,675 | +6,287 | Estimate, July 1 |
| 2007 | 581,388 | +6,874 | Estimate, July 1 |
| 2006 | 574,514 | +4,695 | Estimate, July 1 |
| 2005 | 569,819 | +3,088 | Estimate, July 1 |
| 2004 | 566,731 | +2,823 | Estimate, July 1 |
| 2003 | 563,908 | +3,877 | Estimate, July 1 |
| 2002 | 560,031 | +2,651 | Estimate, July 1 |
| 2001 | 557,380 | +3,401 | Estimate, July 1 |
| 2000 | 553,979 | April 2000 estimates base |
Year-to-year changes across 2010 and 2020 mix census counts with estimates, so small jumps at those years are partly method changes.
Frequently asked questions
What is the population of Louisville in 2025?
The Census Bureau estimates Louisville had 641,962 residents on July 1, 2025, making it the 27th-largest city in the US.
Is Louisville growing?
Yes. Louisville has grown 7.5% since the 2010 Census (597,337 people), and grown 1.6% since 2020.
What was the population of Louisville in 2000?
About 553,979 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 597,337.
How dense is Louisville?
Louisville has about 2,441 people per square mile of land (263.0 square miles).
More about Louisville
See cost of living, jobs and commutes in Louisville, Louisville weather by month, or every Louisville ZIP code. For the biggest cities in the country, see the largest US cities.