A combined almost 100,000 acres were listed for sale in Washington County, Mississippi, recently; the value of all Washington County farms and rural land for sale was around $12 million. Washington County ranks 72nd based on the total amount of acres of land for sale of the 82 counties in the Magnolia State. Among cities in Washington County with farms, hunting land and other rural land and acreage for sale, Greenville had the most land for sale. Washington County is Mississippi's 13th biggest county (761 square miles). It's located in the Delta Mississippi region of the state.