Douglas County is in Eastern Washington. Of the 39 counties in the state, Douglas County is 20th in terms of its size (1 million acres). Douglas County, Washington, includes nearly 1,000 acres of residential land for sale based on recent Land Network data. The combined market value of farms and ranches for sale here was roughly $18 million. The average price of residential land for sale in Douglas County was $759,841. The economy here is principally 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.