Member
Population
Miles
Size
MontanaMontana has 56 Counties.
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Montana Data Sets Montana Links |
Montana Association of Counties 2715 Skyway Drive Helena, MT 59602-1213 Phone: (406)449-4360 Fax: (406)442-5238 http://www.mtcounties.org
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| County | NACo Member |
2010 Population |
Square Miles |
County Seat | Board Size |
Founded |
|---|---|---|---|---|---|---|
| Beaverhead | |
9,246 | 5,542 | Dillon | 3 | 1864 |
| Big Horn | |
12,865 | 4,995 | Hardin | 3 | 1913 |
| Blaine | |
6,491 | 4,228 | Chinook | 3 | 1895 |
| Broadwater | |
5,612 | 1,193 | Townsend | 3 | 1897 |
| Carbon | |
10,078 | 2,049 | Red Lodge | 3 | 1895 |
| Carter | |
1,160 | 3,341 | Ekalaka | 3 | 1917 |
| Cascade | |
81,327 | 2,698 | Great Falls | 3 | 1887 |
| Chouteau | |
5,813 | 3,972 | Fort Benton | 3 | 1865 |
| Custer | |
11,699 | 3,783 | Miles City | 3 | 1865 |
| Daniels | |
1,751 | 1,426 | Scobey | 3 | 1920 |
| Dawson | |
8,966 | 2,372 | Glendive | 3 | 1865 |
| Deer Lodge * | |
9,298 | 737 | Anaconda | 5 | 1864 |
| Fallon | |
2,890 | 1,621 | Baker | 3 | 1913 |
| Fergus | |
11,586 | 4,340 | Lewistown | 3 | 1885 |
| Flathead | |
90,928 | 5,088 | Kalispell | 3 | 1893 |
| Gallatin | |
89,513 | 2,603 | Bozeman | 3 | 1864 |
| Garfield | |
1,206 | 4,675 | Jordan | 3 | 1919 |
| Glacier | |
13,399 | 2,996 | Cut Bank | 3 | 1919 |
| Golden Valley | |
884 | 1,175 | Ryegate | 3 | 1920 |
| Granite | |
3,079 | 1,727 | Philipsburg | 3 | 1893 |
| Hill | |
16,096 | 2,899 | Havre | 3 | 1912 |
| Jefferson | |
11,406 | 1,656 | Boulder | 3 | 1864 |
| Judith Basin | |
2,072 | 1,870 | Stanford | 3 | 1920 |
| Lake | |
28,746 | 1,490 | Polson | 3 | 1923 |
| Lewis And Clark | |
63,395 | 3,459 | Helena | 3 | 1864 |
| Liberty | |
2,339 | 1,430 | Chester | 3 | 1920 |
| Lincoln | |
19,687 | 3,613 | Libby | 3 | 1909 |
| Madison | |
7,691 | 3,587 | Virginia City | 3 | 1864 |
| McCone | |
1,734 | 2,643 | Circle | 3 | 1919 |
| Meagher | |
1,891 | 2,392 | White Sulphur Springs | 3 | 1867 |
| Mineral | |
4,223 | 1,219 | Superior | 3 | 1914 |
| Missoula | |
109,299 | 2,593 | Missoula | 3 | 1864 |
| Musselshell | |
4,538 | 1,868 | Roundup | 3 | 1911 |
| Park | |
15,636 | 2,803 | Livingston | 3 | 1887 |
| Petroleum | |
494 | 1,655 | Winnett | 3 | 1926 |
| Phillips | |
4,253 | 5,140 | Malta | 3 | 1915 |
| Pondera | |
6,153 | 1,623 | Conrad | 3 | 1919 |
| Powder River | |
1,743 | 3,297 | Broadus | 3 | 1919 |
| Powell | |
7,027 | 2,326 | Deer Lodge | 3 | 1901 |
| Prairie | |
1,179 | 1,737 | Terry | 3 | 1915 |
| Ravalli | |
40,212 | 2,391 | Hamilton | 5 | 1893 |
| Richland | |
9,746 | 2,084 | Sidney | 3 | 1914 |
| Roosevelt | |
10,425 | 2,355 | Wolf Point | 3 | 1919 |
| Rosebud | |
9,233 | 5,010 | Forsyth | 3 | 1901 |
| Sanders | |
11,413 | 2,761 | Thompson Falls | 3 | 1906 |
| Sheridan | |
3,384 | 1,677 | Plentywood | 3 | 1913 |
| Silver Bow * | |
34,200 | 718 | Butte | 12 | 1881 |
| Stillwater | |
9,117 | 1,795 | Columbus | 3 | 1913 |
| Sweet Grass | |
3,651 | 1,855 | Big Timber | 3 | 1895 |
| Teton | |
6,073 | 2,272 | Choteau | 3 | 1893 |
| Toole | |
5,324 | 1,916 | Shelby | 3 | 1914 |
| Treasure | |
718 | 977 | Hysham | 3 | 1919 |
| Valley | |
7,369 | 4,926 | Glasgow | 3 | 1893 |
| Wheatland | |
2,168 | 1,423 | Harlowton | 3 | 1917 |
| Wibaux | |
1,017 | 889 | Wibaux | 3 | 1914 |
| Yellowstone | |
147,972 | 2,633 | Billings | 3 | 1893 |