About This Place
Pittsburg is a village in Williamson County, Illinois, United States. The population was 575 at the 2000 census.
Pittsburg is located at 37°46′40″N 88°51′1″W / 37.77778°N 88.85028°W / 37.77778; -88.85028 (37.777805, -88.850327).
According to the United States Census Bureau, the village has a total area of 2.1 square miles (5.5 km²), of which, 2.1 square miles (5.4 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.42%) is water.