Gallatin County is in Yellowstone Country Montana. Of the 56 counties in the Treasure State, Gallatin County is 24th in terms of its size (2 million acres). There is approximately 2,000 acres of farms for sale in Montana's Gallatin County based on recent Land Network data. The combined market value of land and rural real estate for sale here is roughly $64 million. The average price of farmland for sale in Gallatin County was $5 million. Farms for sale in Gallatin County hold livestock including cattle, horses, sheep, goats and pig. Browse all Montana 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 individual needs.