US Census Data

Largest by population in Montana

Montana counties and cities ranked by population.

This page ranks the counties and cities of Montana by population — which have the most people, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, Yellowstone County leads at 167,340.

Among cities & places, Billings leads at 118,321.

Counties

#NamePopulation
1Yellowstone County167,340
2Gallatin County122,194
3Missoula County119,639
4Flathead County108,445
5Cascade County84,601
6Lewis and Clark County72,580
7Ravalli County45,807
8Silver Bow County35,589
9Lake County32,073
10Lincoln County20,656
11Park County17,484
12Hill County16,260
13Glacier County13,713
14Big Horn County12,963
15Sanders County12,936
16Jefferson County12,501
17Custer County11,938
18Fergus County11,581
19Richland County11,329
20Carbon County10,877
21Roosevelt County10,665
22Beaverhead County9,590
23Deer Lodge County9,512
24Stillwater County9,052
25Madison County8,975
26Dawson County8,874
27Rosebud County8,236
28Valley County7,540
29Broadwater County7,310
30Powell County7,029
31Blaine County6,997
32Teton County6,291
33Pondera County6,012
34Chouteau County5,888
35Musselshell County5,068
36Toole County5,028
37Mineral County4,796
38Phillips County4,224
39Sweet Grass County3,713
40Sheridan County3,677
41Granite County3,419
42Fallon County2,817
43Judith Basin County2,053
44Wheatland County2,049
45Meagher County1,979
46Liberty County1,968
47McCone County1,818
48Powder River County1,762
49Daniels County1,524
50Carter County1,361
51Prairie County1,251
52Wibaux County1,148
53Garfield County938
54Golden Valley County840
55Treasure County761
56Petroleum County401

Cities & places

Top 100.
#NamePopulation
1Billings118,321
2Missoula75,600
3Great Falls60,412
4Bozeman55,042
5Butte-Silver Bow34,929
6Helena33,126
7Kalispell26,830
8Belgrade11,425
9Helena Valley Southeast9,533
10Anaconda-Deer Lodge County9,512
11Havre9,333
12Evergreen8,908
13Livingston8,635
14Whitefish8,422
15Miles City8,412
16Helena Valley West Central8,224
17Lockwood7,474
18Laurel7,198
19Sidney6,235
20Lewistown6,028
21Four Corners5,562
22Columbia Falls5,531
23Polson5,334
24Orchard Homes5,280
25Bigfork5,249
26Helena Valley Northwest5,070
27Hamilton4,949
28Glendive4,831
29Helena Valley Northeast4,398
30Lolo4,378
31Malmstrom AFB4,191
32Dillon4,020
33Hardin3,766
34Glasgow3,194
35Shelby3,129
36Cut Bank3,040
37Deer Lodge3,035
38Libby2,948
39Montana City2,899
40North Browning2,894
41Lakeside2,730
42Wolf Point2,604
43Conrad2,553
44Red Lodge2,399
45Big Sky2,388
46King Arthur Park2,343
47Townsend2,232
48Stevensville2,172
49Colstrip2,156
50Manhattan2,149
51Crow Agency2,110
52East Missoula2,072
53Three Forks2,034
54Eureka2,009
55West Glendive1,968
56Roundup1,964
57Ronan1,962
58Lame Deer1,939
59Columbus1,925
60Malta1,902
61East Helena1,855
62South Browning1,852
63Pablo1,808
64Clancy1,729
65Choteau1,719
66Forsyth1,682
67Plentywood1,677
68Frenchtown1,629
69Helena West Side1,584
70Thompson Falls1,568
71Baker1,535
72Big Timber1,530
73Sun Prairie1,514
74Fort Benton1,470
75Chinook1,460
76West Yellowstone1,457
77Bonner-West Riverside1,445
78Fort Belknap Agency1,434
79Corvallis1,356
80Seeley Lake1,335
81Boulder1,326
82Wye1,222
83Wheatland1,185
84Somers1,181
85Whitehall1,151
86Marion1,149
87Churchill1,120
88White Sulphur Springs1,097
89Gallatin Gateway1,092
90Plains1,077
91Harlowton1,054
92St. Ignatius1,053
93Pray1,018
94Helena Flats1,014
95Philipsburg1,012
96Absarokee998
97Superior995
98Florence993
99Browning990
100Vaughn970

Nationwide

1

Other rankings in Montana

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