Washington County is in Delta Mississippi. Of the 82 counties in the state, Washington County is 13th in terms of its size (761 square miles). Recent listings of residential land and property for sale in Washington County, Mississippi, totals about 1,000 acres and a combined market value of around $3 million. The most common type of land for sale by combined acreage in Washington County is residential property. The average price of residential land for sale in Washington County was $206,514. Browse all residential land and rural property for sale in Mississippi to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.