Oneida County is in Southeastern Idaho. Of the 44 counties in the Gem State, 768,316-acre Oneida County ranks 26th by size. Recent listings of residential land and property for sale in Oneida County, Idaho, totals 1,000 acres and a combined market value of about $6 million. The most common type of land for sale by combined acreage in Oneida County is undeveloped land. The average price of residential acreage for sale in Oneida County was $701,522. The county has a rural, farm-based economy. Browse all residential land and rural property for sale in Idaho to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.