The value of all farms and ranches for sale in Oneida County recently was almost $20 million, representing a combined 1,661 acres of land for sale in Oneida County. Oneida County ranks 29th 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 and ranches for sale, Malad City featured the most land for sale. Oneida County has a large agricultural economy, with 503 farms recorded in the county during the latest U.S. Census. 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 Idaho.