Pittsburg County, Oklahoma

Pittsburg County
Pittsburg County Courthouse
Location within the U.S. state of Oklahoma
Oklahoma's location within the U.S.
Coordinates: 34°56′N 95°45′W / 34.93°N 95.75°W / 34.93; -95.75
Country United States
State Oklahoma
Founded1907
Named afterPittsburgh, Pennsylvania
SeatMcAlester
Largest cityMcAlester
Area
  Total
1,378 sq mi (3,570 km2)
  Land1,305 sq mi (3,380 km2)
  Water72 sq mi (190 km2)  5.3%
Population
 (2020)
  Total
43,773
  Density32/sq mi (12/km2)
Congressional district2nd
Websitepittsburg.okcounties.org

Pittsburg County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 43,773. Its county seat is McAlester. The county was formed from part of the Choctaw Nation in Indian Territory in 1907. County leaders believed that its coal production compared favorably with Pittsburgh, Pennsylvania at the time of statehood.

Pittsburg County comprises the McAlester, OK micropolitan statistical area.