Land for sale in Idaho's Cassia County recently totaled $53 million and approximately 9,000 acres. Cassia County ranks 28th out of 44 counties in the Gem State for the combined amount of land currently advertised for sale. Among cities in Cassia County with land for sale, Burley featured the most land for sale. Cassia County has a large agricultural economy, with 668 farms recorded in the county during the latest U.S. Census. Farming activities in Cassia County generate annual revenues of $20 million, the majority of which comes from livestock products. Cassia County is one of the ten largest counties in Idaho (2,580 square miles). It's located in the South Central Idaho region of the state.