Pittsburg is a city in Crawford County, in Southeast Kansas, United States. It is the most populous city in Crawford County and in southeastern Kansas. As of the 2010 census, the city population was 20,233.
It was founded on May 20, 1876, and was originally named Iowa City. George Hobson and Franklin Playter are credited with being the city's founders, establishing a government after its beginnings as a coal mining camp in the 1870s. The city was incorporated in 1880.
Pittsburg is the home to Pittsburg State University, founded as a normal training institution. It has always had a strong manual and industrial arts program and has trained many of the area's public and private school teachers.