There was a total of approximately $262 million of land for sale in Spokane County recently on Land.com. The total of all Spokane County land and rural real estate for sale was around 7,000 acres. Spokane County ranks second in the Evergreen State for the total number of acres of land currently advertised for sale. Spokane had the most land for sale. Spokane County is the 22nd biggest county (1,780 square miles) in Washington. It's located in the Eastern Washington region of the state.