Whitman County is in Eastern Washington. Of the 39 counties in the Evergreen State, 2,177-square-mile Whitman County ranks 16th by size. Recent Land Network data records 1,000 acres of residential land and property for sale in Washington's Whitman County, which is valued at a combined $11 million. The average price of residential land for sale in Whitman County was $370,090. 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.