Washington County
Also known as Washington County, Indiana, Washington County, IN
county in Indiana, United States
Key facts
- Country
- United States
- State
- Indiana
- Named after
- George Washington
- Seat
- Salem
- Largest city
- Salem
- Total
- 516.60 sq mi (1,338.0 km )
- Land
- 513.72 sq mi (1,330.5 km )
- Water
- 2.87 sq mi (7.4 km ) 0.56%
- Estimate 2025
- 28,383
- Density
- 55/sq mi (21/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
Article
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.
History