The value of all farms, ranches, and rural real estate for sale in Jerome County, Idaho, recently was almost $6 million, representing a combined 26 acres of land for sale in Jerome County. Jerome County ranks 41st out of 44 counties in the Gem State for the total number of acres of land currently advertised for sale. Jerome featured the most land for sale. Jerome County has a large agricultural economy, with 560 farms recorded in the county during the latest U.S. Census. Farming activities in Jerome County generate annual revenues of $8 million, the majority of which comes from livestock products. Jerome County is Idaho's 39th biggest county (602 square miles). It's located in the South Central Idaho region of Idaho.