The overall value of farms, rural land, hunting land and other land for sale in South Carolina's Marion County recently on Land.com was approximately $49 million. This represents nearly 2,000 acres of land and rural real estate for sale in Marion County. Marion County ranks 33rd out of 46 counties in the state for the total acreage of land currently advertised for sale. Of all locations in Marion County with farms, hunting land and other rural land and acreage for sale, Marion had the most land for sale. Marion County is the 36th largest county (494 square miles) in South Carolina. It's located in the Pee Dee South Carolina region of South Carolina.