Indiana County
Sign in to savecounty in Pennsylvania, United States
Key facts
- Country
- United States
- State
- Pennsylvania
- Founded
- November 3, 1806
- Seat
- Indiana
- Largest borough
- Indiana
- Total
- 834 sq mi (2,160 km )
- Land
- 827 sq mi (2,140 km )
- Water
- 7.3 sq mi (19 km ) 0.9%
- Estimate 2025
- 82,878
- Density
- 100/sq mi (39/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional districts
- 14th , 15th
- Website
- www .indianacountypa .gov
via Wikipedia infobox
Article
Indiana County is a county in the Commonwealth of Pennsylvania. It is located in the west central part of Pennsylvania. As of the 2020 census, the population was 83,246. Its county seat is Indiana. Indiana County comprises the Indiana, PA Micropolitan Statistical Area, which is also included in the Pittsburgh-New Castle-Weirton, PA-WV-OH Combined Statistical Area. The county is part of the Southwest region of the commonwealth.
Prior to the Revolutionary War, some settlers proposed this as part of a larger, separate colony to be known as Vandalia, but opposing interests and the war intervened. Afterward, claims to the territory by both the states of Virginia and Pennsylvania had to be reconciled. After this land was assigned to Pennsylvania by the federal government according to the placement of the Mason–Dixon line, Indiana County was created on March 30, 1803, from parts of Westmoreland and Clearfield counties and was formally organized in 1806.