The value of all farms, ranches, and rural real estate for sale in Adams County, Washington, recently was nearly $47 million, representing a combined 1,689 acres of land for sale in Adams County. Adams County ranks 35th out of 39 counties in the state for the total number of acres of land currently advertised for sale. Of all locations in Adams County with farms, ranches, and rural real estate for sale, Othello had the most land for sale. Agriculture and farming drives the Adams County economy, with 713 farms recorded in the county during the U.S. Census in 2012. Farming activities in Adams County generate annual revenues of $24 million, most of which is from crops. Adams County is the 17th biggest county (1,929 square miles) in Washington. It's located in the Eastern Washington region of Washington.