The overall value of farms and ranches for sale in Idaho's Custer County recently on Land.com was approximately $97 million. This represents almost 4,000 acres of farms, ranches, and rural real estate for sale in Custer County. Custer County ranks 37th out of 44 counties in the Gem State for the total number of acres of land currently advertised for sale. Among cities in Custer County with farms, ranches, hunting land and other land for sale, Stanley had the most land for sale. Economically speaking, Custer County's is largely dependent on mining and mineral extraction-related businesses and services. Custer County is one of the ten biggest counties in Idaho (4,938 square miles). It's located in the Central Idaho region of Idaho.