Counties
The Federal Information Processing Standard (FIPS) code, which is used by the United States government to uniquely identify counties, is provided for each county. The FIPS code for each county links to census data for that county.
| County |
FIPS code |
County seat |
Established |
Origin |
Etymology |
Population |
Area |
Map |
|---|---|---|---|---|---|---|---|---|
| Beaverhead County | 001 | Dillon | 1864 | Original County | Beaverhead Rock in the Jefferson River, which is shaped like a beaver's head. | 70039202000000000009,202 | 70035543000000000005,543 sq mi (700414356000000000014,356 km2) |
|
| Big Horn County | 003 | Hardin | 1913 | Rosebud County, Yellowstone County | Bighorn sheep in the area. | 700412671000000000012,671 | 70034995000000000004,995 sq mi (700412937000000000012,937 km2) |
|
| Blaine County | 005 | Chinook | 1895 | Chouteau County | James G. Blaine (1830 - 1893), United States Secretary of State and presidential candidate. | 70037009000000000007,009 | 70034226000000000004,226 sq mi (700410945000000000010,945 km2) |
|
| Broadwater County | 007 | Townsend | 1897 | Jefferson County, Meagher County | Charles A. Broadwater (1840 - 1892), a pioneer in the area and colonel in the United States Army. | 70034385000000000004,385 | 70031192000000000001,192 sq mi (70033087000000000003,087 km2) |
|
| Carbon County | 009 | Red Lodge | 1895 | Park County, Yellowstone County | Coal deposits in the area. | 70039552000000000009,552 | 70032048000000000002,048 sq mi (70035304000000000005,304 km2) |
|
| Carter County | 011 | Ekalaka | 1917 | Fallon County | Thomas Henry Carter (1854 - 1911), a U.S. Senator from Montana. | 70031360000000000001,360 | 70033340000000000003,340 sq mi (70038651000000000008,651 km2) |
|
| Cascade County | 013 | Great Falls | 1887 | Chouteau County, Meagher County | Great Falls of the Missouri River. | 700480357000000000080,357 | 70032698000000000002,698 sq mi (70036988000000000006,988 km2) |
|
| Chouteau County | 015 | Fort Benton | 1865 | Original County | Jean Pierre Chouteau (1758 - 1849) and his son Pierre Chouteau, Jr. (1789 - 1865). They were part of the Chouteau fur-trading family. | 70035970000000000005,970 | 70033973000000000003,973 sq mi (700410290000000000010,290 km2) |
|
| Custer County | 017 | Miles City | 1865 | Big Horn County | George Armstrong Custer (1839 - 1876), United States Army officer | 700411696000000000011,696 | 70033783000000000003,783 sq mi (70039798000000000009,798 km2) |
|
| Daniels County | 019 | Scobey | 1920 | Sheridan County, Valley County | Mansfield A. Daniels, an early rancher and storekeeper | 70032017000000000002,017 | 70031426000000000001,426 sq mi (70033693000000000003,693 km2) |
|
| Dawson County | 021 | Glendive | 1865 | Unorganized lands | Andrew Dawson, a trapping official and major in the United States Army | 70039059000000000009,059 | 70032373000000000002,373 sq mi (70036146000000000006,146 km2) |
|
| Deer Lodge County | 023 | Anaconda | 1864 | Original County | Deer Lodge Valley, which in turn was either named for the Native American name "Lodge of the White-tailed Deer" or a salt lick where deer came in droves | 70039417000000000009,417 | 7002737000000000000737 sq mi (70031909000000000001,909 km2) |
|
| Fallon County | 025 | Baker | 1913 | Custer County | Benjamin O'Fallon, a Federal Native American agent | 70032837000000000002,837 | 70031620000000000001,620 sq mi (70034196000000000004,196 km2) |
|
| Fergus County | 027 | Lewistown | 1885 | Original County | Andrew Fergus, one of the first settlers in the county | 700411893000000000011,893 | 70034339000000000004,339 sq mi (700411238000000000011,238 km2) |
|
| Flathead County | 029 | Kalispell | 1893 | Missoula County | Flathead Native Americans | 700474471000000000074,471 | 70035099000000000005,099 sq mi (700413206000000000013,206 km2) |
|
| Gallatin County | 031 | Bozeman | 1864 | Original County | Albert Gallatin (1791 - 1849), the United States Secretary of the Treasury at the time of the Lewis and Clark Expedition | 700467831000000000067,831 | 70032507000000000002,507 sq mi (70036493000000000006,493 km2) |
|
| Garfield County | 033 | Jordan | 1919 | Dawson County | James A. Garfield (1831 - 1881), the twentieth President of the United States | 70031279000000000001,279 | 70034668000000000004,668 sq mi (700412090000000000012,090 km2) |
|
| Glacier County | 035 | Cut Bank | 1919 | Teton County | Glacier National Park, which borders the county | 700413247000000000013,247 | 70032995000000000002,995 sq mi (70037757000000000007,757 km2) |
|
| Golden Valley County | 037 | Ryegate | 1920 | Musselshell County, Sweet Grass County | Probably named in a promotional attempt to lure settlers to the area | 70031042000000000001,042 | 70031175000000000001,175 sq mi (70033043000000000003,043 km2) |
|
| Granite County | 039 | Philipsburg | 1893 | Deer Lodge County, Missoula County | Granite Peak, the highest point in Montana which also contained a silver mine named "Granite" | 70032830000000000002,830 | 70031728000000000001,728 sq mi (70034475000000000004,475 km2) |
|
| Hill County | 041 | Havre | 1912 | Chouteau County | James J. Hill (1838 - 1916), a leading railroad tycoon | 700416673000000000016,673 | 70032896000000000002,896 sq mi (70037501000000000007,501 km2) |
|
| Jefferson County | 043 | Boulder | 1864 | Original County | Thomas Jefferson (1743 - 1826), the third President of the United States | 700410049000000000010,049 | 70031657000000000001,657 sq mi (70034292000000000004,292 km2) |
|
| Judith Basin County | 045 | Stanford | 1920 | Cascade County, Fergus County | The Judith River which was in turn named by William Clark for Julia "Judith" Hancock, whom he would later marry | 70032329000000000002,329 | 70031870000000000001,870 sq mi (70034843000000000004,843 km2) |
|
| Lake County | 047 | Polson | 1923 | Flathead County, Missoula County | Flathead Lake | 700426507000000000026,507 | 70031494000000000001,494 sq mi (70033869000000000003,869 km2) |
|
| Lewis and Clark County | 049 | Helena | 1864 | Original County | Meriwether Lewis and William Clark, the famous explorers | 700455716000000000055,716 | 70033461000000000003,461 sq mi (70038964000000000008,964 km2) |
|
| Liberty County | 051 | Chester | 1920 | Chouteau County, Hill County | The sentiment of the inhabitants when the county was formed soon after World War I | 70032158000000000002,158 | 70031430000000000001,430 sq mi (70033704000000000003,704 km2) |
|
| Lincoln County | 053 | Libby | 1909 | Flathead County | Abraham Lincoln (1809 - 1865), the 16th President of the United States | 700418837000000000018,837 | 70033613000000000003,613 sq mi (70039358000000000009,358 km2) |
|
| McCone County | 055 | Circle | 1919 | Dawson County, Richland County | George McCone, a Montana state senator who helped create the county | 70031977000000000001,977 | 70032643000000000002,643 sq mi (70036845000000000006,845 km2) |
|
| Madison County | 057 | Virginia City | 1864 | Original County | James Madison (1751 - 1836), the fourth President of the United States and the Secretary of State at the time of the Lewis and Clark Expedition | 70036851000000000006,851 | 70033587000000000003,587 sq mi (70039290000000000009,290 km2) |
|
| Meagher County | 059 | White Sulphur Springs | 1867 | Chouteau County, Gallatin County | Thomas Francis Meagher (1823 - 1867), an acting Governor of the Montana Territory | 70031932000000000001,932 | 70032392000000000002,392 sq mi (70036195000000000006,195 km2) |
|
| Mineral County | 061 | Superior | 1914 | Missoula County | Many mines and mining prospects within the county | 70033884000000000003,884 | 70031220000000000001,220 sq mi (70033160000000000003,160 km2) |
|
| Missoula County | 063 | Missoula | 1864 | Original County | Supposedly a contraction of the Flathead word, "im-i-sul-e-etiku", meaning "by or near the place of fear or ambush", a reference to Hell Gate Canyon, in which Flathead Native Americans were sometimes attacked by Blackfeet | 7005108623000000000108,623 | 70032598000000000002,598 sq mi (70036729000000000006,729 km2) |
|
| Musselshell County | 065 | Roundup | 1911 | Fergus County, Meagher County, Yellowstone County | The Musselshell River, named in turn by the Lewis and Clark Expedition presumably due to mussels found on its banks | 70034497000000000004,497 | 70031867000000000001,867 sq mi (70034836000000000004,836 km2) |
|
| Park County | 067 | Livingston | 1887 | Gallatin County | Nearby Yellowstone National Park | 700415694000000000015,694 | 70032656000000000002,656 sq mi (70036879000000000006,879 km2) |
|
| Petroleum County | 069 | Winnett | 1926 | Fergus County | The production of petroleum at Cat Creek | 7002493000000000000493 | 70031654000000000001,654 sq mi (70034284000000000004,284 km2) |
|
| Phillips County | 071 | Malta | 1915 | Blaine County, Valley County | B.D. Phillips, a leading rancher and early pioneer in the county | 70034601000000000004,601 | 70035140000000000005,140 sq mi (700413313000000000013,313 km2) |
|
| Pondera County | 073 | Conrad | 1919 | Chouteau County, Teton County | Originally pend d'oreille, French words meaning "ear pendant"; the name was changed to a form resembling the phonetic spelling to avoid confusion with the lake and town of the same name in Idaho and of a county in Washington. | 70036424000000000006,424 | 70031625000000000001,625 sq mi (70034209000000000004,209 km2) |
|
| Powder River County | 075 | Broadus | 1919 | Custer County | The Powder River, named in turn for the gunpowder-like sand on its shores | 70031858000000000001,858 | 70033297000000000003,297 sq mi (70038539000000000008,539 km2) |
|
| Powell County | 077 | Deer Lodge | 1901 | Deer Lodge County | Mount Powell, which in turn was named for John Wesley Powell (1834 - 1902), the early environmentalist and explorer | 70037180000000000007,180 | 70032326000000000002,326 sq mi (70036024000000000006,024 km2) |
|
| Prairie County | 079 | Terry | 1915 | Dawson County, Fallon County | The county's location on the Great Plains | 70031199000000000001,199 | 70031737000000000001,737 sq mi (70034499000000000004,499 km2) |
|
| Ravalli County | 081 | Hamilton | 1893 | Missoula County | Anthony Ravalli (1812 - 1884), a Jesuit missionary who came to the area in 1845 | 700436070000000000036,070 | 70032394000000000002,394 sq mi (70036200000000000006,200 km2) |
|
| Richland County | 083 | Sidney | 1914 | Dawson County | Named so as to depict fertile soil, in an attempt to lure in settlers | 70039667000000000009,667 | 70032084000000000002,084 sq mi (70035398000000000005,398 km2) |
|
| Roosevelt County | 085 | Wolf Point | 1919 | Sheridan County | Theodore Roosevelt (1858 - 1919), the twenty-sixth President of the United States | 700410620000000000010,620 | 70032356000000000002,356 sq mi (70036102000000000006,102 km2) |
|
| Rosebud County | 087 | Forsyth | 1901 | Custer County | The Rosebud River, which was named for the many wild roses along its banks | 70039383000000000009,383 | 70035012000000000005,012 sq mi (700412981000000000012,981 km2) |
|
| Sanders County | 089 | Thompson Falls | 1905 | Missoula County | Wilbur Fiske Sanders (1834 - 1905), a pioneer, vigilante, and U.S. Senator from Montana | 700410227000000000010,227 | 70032762000000000002,762 sq mi (70037154000000000007,154 km2) |
|
| Sheridan County | 091 | Plentywood | 1913 | Valley County | Philip Sheridan (1831 - 1888), Civil War general | 70034105000000000004,105 | 70031677000000000001,677 sq mi (70034343000000000004,343 km2) |
|
| Silver Bow County | 093 | Butte | 1881 | Deer Lodge County | Silver Bow Creek; there are multiple theories explaining how the creek got its name | 700434606000000000034,606 | 7002718000000000000718 sq mi (70031860000000000001,860 km2) |
|
| Stillwater County | 095 | Columbus | 1913 | Carbon County, Sweet Grass County, Yellowstone County | Stillwater River, ironically named for its very fast current | 70038195000000000008,195 | 70031795000000000001,795 sq mi (70034649000000000004,649 km2) |
|
| Sweet Grass County | 097 | Big Timber | 1895 | Meagher County, Park County, Yellowstone County | The abundant sweet grass in the county | 70033609000000000003,609 | 70031855000000000001,855 sq mi (70034804000000000004,804 km2) |
|
| Teton County | 099 | Choteau | 1893 | Chouteau County | The Teton Range which is in turn named for the French word for 'breast', teton. | 70036445000000000006,445 | 70032273000000000002,273 sq mi (70035887000000000005,887 km2) |
|
| Toole County | 101 | Shelby | 1914 | Hill County, Teton County | Joseph Toole (1851 - 1929), the first and fourth Governor of Montana | 70035267000000000005,267 | 70031911000000000001,911 sq mi (70034949000000000004,949 km2) |
|
| Treasure County | 103 | Hysham | 1919 | Rosebud County | Named promotionally to attract new settlers | 7002861000000000000861 | 7002979000000000000979 sq mi (70032536000000000002,536 km2) |
|
| Valley County | 105 | Glasgow | 1893 | Dawson County | Much of the county lies within the valley of the Milk River | 70037675000000000007,675 | 70034921000000000004,921 sq mi (700412745000000000012,745 km2) |
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| Wheatland County | 107 | Harlowton | 1917 | Meagher County, Sweet Grass County | The many wheat fields in the county | 70032259000000000002,259 | 70031423000000000001,423 sq mi (70033686000000000003,686 km2) |
|
| Wibaux County | 109 | Wibaux | 1914 | Dawson County, Fallon County, Richland County | Pierre Wibaux (1858 - 1913), a pioneer and cattleman | 70031068000000000001,068 | 7002889000000000000889 sq mi (70032302000000000002,302 km2) |
|
| Yellowstone County | 111 | Billings | 1893 | Custer County | The Yellowstone River, named in turn for the yellow rocks found along its shores | 7005144797000000000144,797 | 70032635000000000002,635 sq mi (70036825000000000006,825 km2) |
Read more about this topic: List Of Counties In Montana
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