The combined value of farms and ranches for sale in Washington's Adams County recently on Land.com was approximately $15 million. This represents almost 1,000 acres of farms, ranches, and rural real estate for sale in Adams County. Adams County ranks 35th in the Evergreen State for the total acreage of land currently advertised for sale. Of all farms, ranches, and rural real estate for sale in Adams County, Othello featured the most land for sale. Adams County has a large agricultural economy, with 713 farms recorded in the county during the latest U.S. Census. Farming activities in Adams County generate annual revenues of $24 million, most of which is from crops. Adams County is Washington's 17th largest county (1,929 square miles). It's located in the Eastern Washington region of Washington.