A total of around 1,000 acres were listed for sale in Garfield County, Washington, recently, representing a combined around $5 million in Garfield County land and rural real estate for sale. Garfield County ranks 38th out of 39 counties in Washington for the total number of acres of land currently advertised for sale. Pomeroy featured the most land for sale. Government and state-level services are the main economic drivers in Garfield County. Garfield County is Washington's 33rd biggest county (718 square miles). It's located in the Eastern Washington region of Washington.