The combined value of farms and ranches for sale in Idaho's Owyhee County recently on Land.com was approximately $40 million. This represents around 2,000 acres of farms, ranches, hunting land and other land for sale in Owyhee County. Owyhee County ranks 32nd in the Gem State for the total number of acres of land currently advertised for sale. Homedale featured the most land for sale. Owyhee County has a large agricultural economy, with 578 farms recorded in the county during the latest U.S. Census. Farming activities in Owyhee County generate annual revenues of $7 million, the majority of which comes from livestock products. Owyhee County is one of the ten biggest counties in Idaho (7,696 square miles). It's located in the Southwestern Idaho region of the state.