Washington County, Indiana

Washington County
Washington County courthouse in Salem
Location within the U.S. state of Indiana
Indiana's location within the U.S.
Coordinates: 38°36′N 86°07′W / 38.6°N 86.11°W / 38.6; -86.11
Country United States
State Indiana
Founded1814
Named afterGeorge Washington
SeatSalem
Largest citySalem
Area
  Total
516.60 sq mi (1,338.0 km2)
  Land513.72 sq mi (1,330.5 km2)
  Water2.87 sq mi (7.4 km2)  0.56%
Population
 (2020)
  Total
28,182
  Estimate 
(2024)
28,345
  Density55/sq mi (21/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district9th
Websitewww.washingtoncounty.in.gov
Indiana county number 88

Washington County is a county in the U.S. state of Indiana. As of the 2020 United States census, the population was 28,182. The county seat (and the county's only incorporated city) is Salem. Washington County is part of the Louisville metropolitan area.