Land for sale in Idaho's Oneida County recently totaled almost $29 million and almost 3,000 acres. Oneida County ranks 38th out of 44 counties in the Gem State for the combined amount of land currently advertised for sale. Of all locations in Oneida County with farms, ranches, hunting land and other land for sale, Malad City had the most land for sale. Agriculture and farming drives the Oneida County economy, with 503 farms recorded in the county during the U.S. Census in 2012. Farming activities in Oneida County generate annual revenues of $2 million, most of which is from crops. Oneida County is Idaho's 26th largest county (1,200 square miles). It's located in the Southeastern Idaho region of the state.