Jefferson County is in Eastern Idaho. Of the 44 counties in the Gem State, Jefferson County is 28th in terms of its size (707,657 acres). Jefferson County, Idaho, has around 1,000 acres of residential land and property for sale based on recent Land Network data. The combined market value of ranches, farms, hunting land and other rural land and acreage for sale here was approximately $14 million. The average price of residential acreage for sale in Jefferson County was $891,268. 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.