The value of all land and rural real estate for sale in Butte County recently was almost $7 million, representing a total of 309 acres of land for sale in Butte County. Butte County ranks 43rd in Idaho for the total number of acres of land currently advertised for sale. Of all land for sale in Butte County, Arco had the most land for sale. Butte County is one of the ten biggest counties in Idaho (2,238 square miles). It's located in the Central Idaho region of the state.