Gallatin County is in Yellowstone Country Montana. Of the 56 counties in the Treasure State, Gallatin County is 24th in terms of its size (2,633 square miles). Recent listings of farms for sale in Gallatin County, Montana, totals around 3,000 acres and a combined market value of roughly $73 million. The most common type of land for sale by combined acreage in Gallatin County is residential property. The average price of farms for sale in Gallatin County was $4 million. Farms for sale in Gallatin County support 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 business or lifestyle needs.