There was a combined almost $3 million of farms, hunting land and other rural land and acreage for sale in Lawrence County recently on Land.com. The total acreage of all Lawrence County land and rural real estate for sale was around 1,000 acres. Lawrence County ranks 82nd out of 102 counties in the Prairie State for the combined amount of land currently advertised for sale. Sumner had the most land for sale. Mining and mineral extraction-related services are the main economic drivers in this part of Illinois. Lawrence County is the 82nd biggest county (374 square miles) in Illinois. It's located in the Southern Illinois region of Illinois.