Counties in Montana

56 counties · Population, income, elections, and more

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56 counties

CountyPopulation
Yellowstone County167,340
Gallatin County122,194
Missoula County119,639
Flathead County108,445
Cascade County84,601
Lewis and Clark County72,580
Ravalli County45,807
Silver Bow County35,589
Lake County32,073
Lincoln County20,656
Park County17,484
Hill County16,260
Glacier County13,713
Big Horn County12,963
Sanders County12,936
Jefferson County12,501
Custer County11,938
Fergus County11,581
Richland County11,329
Carbon County10,877
Roosevelt County10,665
Beaverhead County9,590
Deer Lodge County9,512
Stillwater County9,052
Madison County8,975
Dawson County8,874
Rosebud County8,236
Valley County7,540
Broadwater County7,310
Powell County7,029
Blaine County6,997
Teton County6,291
Pondera County6,012
Chouteau County5,888
Musselshell County5,068
Toole County5,028
Mineral County4,796
Phillips County4,224
Sweet Grass County3,713
Sheridan County3,677
Granite County3,419
Fallon County2,817
Judith Basin County2,053
Wheatland County2,049
Meagher County1,979
Liberty County1,968
McCone County1,818
Powder River County1,762
Daniels County1,524
Carter County1,361
Prairie County1,251
Wibaux County1,148
Garfield County938
Golden Valley County840
Treasure County761
Petroleum County401