The total value of land and rural real estate for sale in Washington's Whitman County recently on Land.com was almost $30 million. This represents 1,000 acres of farms, ranches, hunting land and other land for sale in Whitman County. Whitman County ranks 25th in the Evergreen State for the total number of acres of land currently advertised for sale. Of all land for sale in Whitman County, Pullman had the most land for sale. Government and state-level services are the main economic drivers in Whitman County. Whitman County is the 16th biggest county (2,177 square miles) in Washington. It's located in the Eastern Washington region of Washington.