Louisville Flag

Louisville

County:
Clay County
County Seat:
Yes
Area (mi²):
0.828
State:
Illinois

Louisville is a village located in Clay County, Illinois. Louisville has a 2026 population of 1,107. It is also the county seat of Clay County. Louisville is currently declining at a rate of -0.9% annually and its population has decreased by -3.23% since the most recent census, which recorded a population of 1,144 in 2020.

1.1K
Total Population
1,336
Density (mi²)
-10 -0.9%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)