Montana Outline Montana Demographics by Cubit

Montana Counties by Population

Montana Counties by Population

Get a list of Montana counties by population. The data is from the US Census. Below are 56 Montana counties ranked 1 through 56. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

Rank County Population
1 Yellowstone County 155,634
2 Missoula County 112,684
3 Gallatin County 97,308
4 Flathead County 94,924
5 Cascade County 82,344
6 Lewis and Clark County 65,856
7 Ravalli County 41,030
8 Silver Bow County 34,680
9 Lake County 29,099
10 Lincoln County 19,125
11 Hill County 16,596
12 Park County 15,880
13 Glacier County 13,696
14 Big Horn County 13,282
15 Custer County 12,092
16 Richland County 11,576
17 Jefferson County 11,558
18 Fergus County 11,442
19 Sanders County 11,364
20 Roosevelt County 11,332
21 Carbon County 10,399
22 Dawson County 9,518
23 Beaverhead County 9,345
24 Rosebud County 9,326
25 Stillwater County 9,290
26 Deer Lodge County 9,150
27 Madison County 7,820
28 Valley County 7,640
29 Powell County 6,909
30 Blaine County 6,619
31 Pondera County 6,219
32 Teton County 6,064
33 Chouteau County 5,894
34 Broadwater County 5,667
35 Toole County 5,150
36 Musselshell County 4,589
37 Mineral County 4,257
38 Phillips County 4,192
39 Sheridan County 3,696
40 Sweet Grass County 3,665
41 Granite County 3,209
42 Fallon County 3,108
43 Liberty County 2,359
44 Wheatland County 2,102
45 Judith Basin County 1,991
46 Meagher County 1,853
47 Daniels County 1,793
48 Powder River County 1,783
49 McCone County 1,694
50 Garfield County 1,309
51 Carter County 1,169
52 Prairie County 1,148
53 Wibaux County 1,121
54 Golden Valley County 852
55 Treasure County 692
56 Petroleum County 485

Source: U.S. Census

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