Land for sale in Oklahoma's Pittsburg County recently totaled $150 million and approximately 100,000 acres. Pittsburg County ranks 10th out of 77 counties in the state for the combined amount of land currently advertised for sale. There were four properties listed as sold in Pittsburg County through the Land Network Comparable Sales Program. This represented a total value of $687,700. Mcalester had the most land for sale. Government and state-level services are the main economic drivers in Pittsburg County. Pittsburg County is one of the ten biggest counties in Oklahoma (1,377 square miles). It's located in the Kiamichi Country Oklahoma region of Oklahoma.