Adams County is in Eastern Washington. Of the 39 counties in the Evergreen State, Adams County ranks 17th in terms of size (1,929 square miles). Recent Land Network data records almost 1,000 acres of residential land and property for sale in Washington's Adams County, which is valued at a combined $8 million. The average price of residential land for sale in Adams County was $491,305. The county has a rural, farm-based economy. 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.