There was a combined $168 million of farms and rural land for sale in South Carolina's Dorchester County recently on Land.com. The total of all Dorchester County farms, rural land, hunting land and other land for sale was almost 6,000 acres. Dorchester County ranks 18th out of 46 counties in the Palmetto State for the total number of acres of land currently advertised for sale. Summerville featured the most land for sale. Dorchester County is the 27th largest county (571 square miles) in South Carolina. It's located in the Low Country South Carolina region of the state.