Montana Counties
Montana County map
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Montana Counties

There are fifty-six 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.
 

Montana Counties: History and Information

Find a brief history of Montana CountiesBrief history of Montana Counties: Flags of Our Nation

Montana  is a state in the Western United States. The western third of the state contains numerous mountain ranges; other 'island' ranges are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains.

This is a list of the 56 counties in the US 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 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. Eight counties of the state are composed of two or more words.

Find a brief history of Montana Counties
County 2000
Population
Square
Miles
County Seat Created
Beaverhead County 9,202 5,543 Dillon 1864
Big Horn County 12,671 4,995 Hardin 1913
Blaine County 7,009 4,226 Chinook 1895
Broadwater County 4,385 1,192 Townsend 1897
Carbon County 9,552 2,048 Red Lodge 1895
Carter County 1,360 3,340 Ekalaka 1917
Cascade County 80,357 2,698 Great Falls 1887
Chouteau County 5,970 3,973 Fort Benton 1865
Custer County 11,696 3,783 Miles City 1865
Daniels County 2,017 1,426 Scobey 1920
Dawson County 9,059 2,373 Glendive 1865
Deer Lodge County 9,417 737 Anaconda 1864
Fallon County 2,837 1,620 Baker 1913
Fergus County 11,893 4,339 Lewistown 1885
Flathead County 74,471 5,099 Kalispell 1893
Gallatin County 67,831 2,507 Bozeman 1864
Garfield County 1,279 4,668 Jordan 1919
Glacier County 13,247 2,995 Cut Bank 1919
Golden Valley County 1,042 1,175 Ryegate 1920
Granite County 2,830 1,728 Philipsburg 1893
Hill County 16,673 2,896 Havre 1912
Jefferson County 10,049 1,657 Boulder 1864
Judith Basin County 2,329 1,870 Stanford 1920
Lake County 26,507 1,494 Polson 1923
Lewis And Clark County 55,716 3,461 Helena 1864
Liberty County 2,158 1,430 Chester 1920
Lincoln County 18,837 3,613 Libby 1909
Madison County 6,851 3,587 Virginia City 1864
McCone County 1,977 2,643 Circle 1919
Meagher County 1,932 2,392 White Sulphur Springs 1867
Mineral County 3,884 1,220 Superior 1914
Missoula County 95,802 2,598 Missoula 1864
Musselshell County 4,497 1,867 Roundup 1911
Park County 15,694 2,656 Livingston 1887
Petroleum County 493 1,654 Winnett 1926
Phillips County 4,601 5,140 Malta 1915
Pondera County 6,424 1,625 Conrad 1919
Powder River County 1,858 3,297 Broadus 1919
Powell County 7,180 2,326 Deer Lodge 1901
Prairie County 1,199 1,737 Terry 1915
Ravalli County 36,070 2,394 Hamilton 1893
Richland County 9,667 2,084 Sidney 1914
Roosevelt County 10,620 2,356 Wolf Point 1919
Rosebud County 9,383 5,012 Forsyth 1901
Sanders County 10,227 2,762 Thompson Falls 1906
Sheridan County 4,105 1,677 Plentywood 1913
Silver Bow County 34,606 718 Butte 1881
Stillwater County 8,195 1,795 Columbus 1913
Sweet Grass County 3,609 1,855 Big Timber 1895
Teton County 6,445 2,273 Choteau 1893
Toole County 5,267 1,911 Shelby 1914
Treasure County 861 979 Hysham 1919
Valley County 7,675 4,921 Glasgow 1893
Wheatland County 2,259 1,423 Harlowton 1917
Wibaux County 1,068 889 Wibaux 1914
Yellowstone County 129,352 2,635 Billings 1893


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US Counties
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