List of counties in Montana

There are 56 counties in the U.S. state of Montana. Montana has two consolidated city-counties—Anaconda with Deer Lodge County and Butte with Silver Bow County. The portion of Yellowstone National Park that is in Montana was not part of any county until 1978. Then part of it was added to Gallatin County, and the rest of it to Park County.
Montana's postal abbreviation is MT and its FIPS state code is 30.