The value of all land for sale in Washington's Garfield County recently was almost $4 million, representing a combined 430 acres of land for sale in Garfield County. Garfield County ranks 38th out of 39 counties in the Evergreen State for the combined amount of land currently advertised for sale. Of all locations in Garfield County with ranches, farms, hunting land and other rural land and acreage 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 the state.