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.

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Ranking of Montana Counties By Population in 2013
Yellowstone
153.86K
Missoula
111.99K
Gallatin
94.89K
Flathead
92.99K
Cascade
82.24K
Lewis and Clark
65.28K
Ravalli
40.70K
Silver Bow
34.61K
Lake
29.14K
Lincoln
19.44K
Ranking of Montana Counties By Population in 2013
Rank
County
Population
1 Yellowstone County 153,857
2 Missoula County 111,988
3 Gallatin County 94,885
4 Flathead County 92,988
5 Cascade County 82,241
6 Lewis and Clark County 65,277
7 Ravalli County 40,698
8 Silver Bow County 34,610
9 Lake County 29,138
10 Lincoln County 19,437
11 Hill County 16,534
12 Park County 15,705
13 Glacier County 13,793
14 Big Horn County 13,114
15 Custer County 11,883
16 Fergus County 11,470
17 Jefferson County 11,457
18 Sanders County 11,314
19 Richland County 11,173
20 Roosevelt County 11,087
21 Carbon County 10,338
22 Dawson County 9,392
23 Beaverhead County 9,307
24 Rosebud County 9,303
25 Deer Lodge County 9,264
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