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Montana Counties
There are 56 Counties in 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 lies within Montana was not part of any county until 1997, when part of it was nominally added to Gallatin County, and the rest of it to Park County.

Big Horn County, Montana

Big Horn County History, Geography, and Demographics

County Seat: Hardin
Year Organized: 1913
Square Miles: 4,995
Court House:

121 W 3rd Street, PO Box 908
County Courthouse
Hardin, MT 59034-1905

Etymology - Origin of County Name

Bighorn sheep in the area


County QuickFacts: Census Bureau Quick Facts

County History

Big Horn County was created 13 January 1913 from Rosebud and Yellowstone Counties.


According to the U.S. Census Bureau, the county has a total area of 5,015 square miles (12,988 kmē), of which, 4,995 square miles (12,936 kmē) of it is land and 20 square miles (51 kmē) of it (0.40%) is water. Most of the county's land area comprises Indian reservations: The Crow Indian Reservation covers 64.2 percent of its area, while the Northern Cheyenne Indian Reservation covers another 6.37 percent.

Neighboring Counties:

  • Carbon County, Montana - west
  • Yellowstone County, Montana - northwest
  • Treasure County, Montana - north
  • Rosebud County, Montana - northeast
  • Powder River County, Montana - east
  • Sheridan County, Wyoming - south
  • Big Horn County, Wyoming - southwest

Cities and Towns:

- Hardin (County Seat) city Incorporated Area
- Lodge Grass town Incorporated Area

County Resources:

Enter County Resources and Information Here

County Resources
Counties: US Map
The history of our nation was a prolonged struggle to define the relative roles and powers of our governments: federal, state, and local. And the names given the counties, our most locally based jurisdictions, reflects the "characteristic features of this country!"