Indiana County, Pennsylvania

Indiana County
Indiana County Courthouse
Indiana County Courthouse
Official seal of Indiana County
Map of Pennsylvania highlighting Indiana County
Location within the U.S. state of Pennsylvania
Map of the United States highlighting Pennsylvania
Pennsylvania's location within the U.S.
Coordinates: 40°39′N 79°05′W / 40.65°N 79.09°W / 40.65; -79.09
Country United States
State Pennsylvania
FoundedNovember 3, 1806
SeatIndiana
Largest boroughIndiana
Area
 • Total834 sq mi (2,160 km2)
 • Land827 sq mi (2,140 km2)
 • Water7.3 sq mi (19 km2)  0.9%
Population
 (2020)
 • Total83,246
 • Density101/sq mi (39/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district15th
Websitewww.indianacountypa.gov

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.[1] Its county seat is Indiana.[2] 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 Pennsylvania region of the state.[a]

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.[3]

  1. ^ "Census - Geography Profile: Indiana County, Pennsylvania". United States Census Bureau. Retrieved December 18, 2022.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ "Pennsylvania: Individual County Chronologies". Pennsylvania Atlas of Historical County Boundaries. The Newberry Library. 2008. Archived from the original on March 25, 2015. Retrieved March 12, 2015.


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