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is a borough in Indiana County, Pennsylvania, 43 miles east of Pittsburgh, and on the Conemaugh River. Blairsville was settled in 1818 and incorporated in 1825. In the past, railway shops, foundries, machine shops, enameling plants and manufactories of plate glass and lumber employed the residents. It was the seat of Blairsville College, a Presbyterian institution opened in 1851, and currently houses a campus for Wyoming Technical Institute. Population in 1910, 3,572, and in 1940, 5,002. The population was 3,607 at the 2000 census.
Blairsville is located in the south of Indiana County, Pennsylvania, bordered by the Conemaugh River to the south and west and Burrell Township to the north and east.
According to the United States Census Bureau, the borough has a total area of 1.4 square miles (3.6 km²), all of it land.