Of 44 counties in the Gem State, 4,938-square-mile Custer County ranks third by size. Custer County is in the Central Idaho region. Custer County, Idaho, includes about 1,000 acres of farms for sale based on recent Land Network data. The combined market value of land for sale here was nearly $30 million. The average price of farms for sale in Custer County was $8 million. Farms for sale in Custer County support livestock including horses, cattle, sheep, pig and goats. Browse all Idaho farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or lifestyle needs.