The overall value of ranches, farms, hunting land and other rural land and acreage for sale in Washington County, Ohio, recently on Land.com was around $27 million. This represents around 2,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Washington County. Washington County ranks 43rd in the Buckeye State for the total number of acres of land currently advertised for sale. Of all locations in Washington County with ranches, farms, hunting land and other rural land and acreage for sale, Marietta had the most land for sale. Washington County is one of the ten largest counties in Ohio (639 square miles). It's located in the Southeast Ohio region of the state.