Montana County Map, List of Counties in Montana with Seats

The U.S. state of Montana is divided into 56 Counties. Explore the Montana County Map, all Counties list along with their County Seats in alphabetical order and their population, areas and the date of formation.

Montana County Map

Montana County Map About Montana County Map: The map showing the county boundary, all counties boundary, state capital and neighbouring states.
  • Montana Map
  • Counties in Montana
  • Cities in Montana
  • Airports in Montana
  • Zip Codes in Montana
  • Where is Montana
  • About Counties of Montana

    The U.S. state of Montana has 56 Counties. This is list of Montana Counties and County Seats in alphabetical order along with check their population, areas and the date of formation.

    List of Counties in Montana with County Seats

    S.NCountyCounty SeatPopulationArea Formed
    1Beaverhead CountyDillon9,3455,543 sq mi1864
    2Big Horn CountyHardin13,2824,995 sq mi1913
    3Blaine CountyChinook6,6194,226 sq mi1895
    4Broadwater CountyTownsend5,6671,192 sq mi1897
    5Carbon CountyRed Lodge10,3992,048 sq mi1895
    6Carter CountyEkalaka1,1693,340 sq mi1917
    7Cascade CountyGreat Falls82,3442,698 sq mi1887
    8Chouteau CountyFort Benton5,8943,973 sq mi1865
    9Custer CountyMiles City12,0923,783 sq mi1865
    10Daniels CountyScobey1,7931,426 sq mi1920
    11Dawson CountyGlendive9,5182,373 sq mi1865
    12Deer Lodge CountyAnaconda9,150737 sq mi1864
    13Fallon CountyBaker3,1081,620 sq mi1913
    14Fergus CountyLewistown11,4424,339 sq mi1885
    15Flathead CountyKalispell94,9245,099 sq mi1893
    16Gallatin CountyBozeman97,3082,507 sq mi1864
    17Garfield CountyJordan1,3094,668 sq mi1919
    18Glacier CountyCut Bank13,6962,995 sq mi1919
    19Golden Valley CountyRyegate8521,175 sq mi1920
    20Granite CountyPhilipsburg3,2091,728 sq mi1893
    21Hill CountyHavre16,5962,896 sq mi1912
    22Jefferson CountyBoulder11,5581,657 sq mi1864
    23Judith Basin CountyStanford1,9911,870 sq mi1920
    24Lake CountyPolson29,0991,494 sq mi1923
    25Lewis and Clark CountyHelena65,8563,461 sq mi1864
    26Liberty CountyChester2,3591,430 sq mi1920
    27Lincoln CountyLibby19,1253,613 sq mi1909
    28Madison CountyVirginia City7,8203,587 sq mi1864
    29McCone CountyCircle1,6942,643 sq mi1919
    30Meagher CountyWhite Sulphur Springs1,8532,392 sq mi1867
    31Mineral CountySuperior4,2571,220 sq mi1914
    32Missoula CountyMissoula112,6842,598 sq mi1864
    33Musselshell CountyRoundup4,5891,867 sq mi1911
    34Park CountyLivingston15,8802,656 sq mi1887
    35Petroleum CountyWinnett4851,654 sq mi1926
    36Phillips CountyMalta4,1925,140 sq mi1915
    37Pondera CountyConrad6,2191,625 sq mi1919
    38Powder River CountyBroadus1,7833,297 sq mi1919
    39Powell CountyDeer Lodge6,9092,326 sq mi1901
    40Prairie CountyTerry1,1481,737 sq mi1915
    41Ravalli CountyHamilton41,0302,394 sq mi1893
    42Richland CountySidney11,5762,084 sq mi1914
    43Roosevelt CountyWolf Point11,3322,356 sq mi1919
    44Rosebud CountyForsyth9,3265,012 sq mi1901
    45Sanders CountyThompson Falls11,3642,762 sq mi1905
    46Sheridan CountyPlentywood3,6961,677 sq mi1913
    47Silver Bow CountyButte34,680718 sq mi1881
    48Stillwater CountyColumbus9,2901,795 sq mi1913
    49Sweet Grass CountyBig Timber3,6651,855 sq mi1895
    50Teton CountyChoteau6,0642,273 sq mi1893
    51Toole CountyShelby5,1501,911 sq mi1914
    52Treasure CountyHysham692979 sq mi1919
    53Valley CountyGlasgow7,6404,921 sq mi1893
    54Wheatland CountyHarlowton2,1021,423 sq mi1917
    55Wibaux CountyWibaux1,121889 sq mi1914
    56Yellowstone CountyBillings155,6342,635 sq mi1893
    Edited by: Vijay Kanth | Updated: September 22, 2021