Ranking of Montana Counties By Population in 2013

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2013, the Population for Montana was 1.01M. Among all Montana counties, Yellowstone County had the highest population (153.86K), followed by Missoula County (111.99K), and Gallatin County (94.89K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Montana counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Montana Counties By Population in 2013
Yellowstone
Missoula
Gallatin
Flathead
Cascade
Lewis and Clark
Ravalli
Silver Bow
Lake
Lincoln
Ranking of Montana Counties By Population in 2013
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Rank County Population
1 Yellowstone County 153857
2 Missoula County 111988
3 Gallatin County 94885
4 Flathead County 92988
5 Cascade County 82241
6 Lewis and Clark County 65277
7 Ravalli County 40698
8 Silver Bow County 34610
9 Lake County 29138
10 Lincoln County 19437
11 Hill County 16534
12 Park County 15705
13 Glacier County 13793
14 Big Horn County 13114
15 Custer County 11883
16 Fergus County 11470
17 Jefferson County 11457
18 Sanders County 11314
19 Richland County 11173
20 Roosevelt County 11087
21 Carbon County 10338
22 Dawson County 9392
23 Beaverhead County 9307
24 Rosebud County 9303
25 Deer Lodge County 9264
26 Stillwater County 9250
27 Madison County 7679
28 Valley County 7636
29 Powell County 6953
30 Blaine County 6638
31 Pondera County 6218
32 Teton County 6053
33 Chouteau County 5854
34 Broadwater County 5678
35 Toole County 5125
36 Musselshell County 4684
37 Mineral County 4230
38 Phillips County 4163
39 Sweet Grass County 3657
40 Sheridan County 3626
41 Granite County 3067
42 Fallon County 3047
43 Liberty County 2364
44 Wheatland County 2121
45 Judith Basin County 2002
46 Meagher County 1905
47 Daniels County 1778
48 Powder River County 1754
49 McCone County 1714
50 Garfield County 1254
51 Prairie County 1163
52 Carter County 1152
53 Wibaux County 1101
54 Golden Valley County 846
55 Treasure County 688
56 Petroleum County 505