Located in South Central Idaho, 2,580-square-mile Cassia County is one of the ten biggest counties in the state. There is approximately 1,000 acres of residential land and property for sale in Cassia County, Idaho, based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here is around $12 million. The average price of residential acreage for sale in Cassia County was $593,147. 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.