Douglas County is in Eastern Washington. Of the 39 counties in the state, 1,848-square-mile Douglas County ranks 20th by size. Recent listings of residential land and property for sale in Washington's Douglas County totals about 1,000 acres and a combined market value of almost $13 million. The most common type of land for sale by combined acreage in Douglas County is undeveloped land. The average price of residential land for sale in Douglas County was $742,288. The economy here is largely agricultural. Browse all residential land and rural property for sale in Washington 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.