Ranking of Montana Counties By Population in 2016

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2016, the Population for Montana was 1.04M. Among all Montana counties, Yellowstone County had the highest population (158.07K), followed by Missoula County (116.59K), and Gallatin County (105.00K).

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 2016
Yellowstone
158.07K
Missoula
116.59K
Gallatin
105.00K
Flathead
97.90K
Cascade
81.66K
Lewis and Clark
67.00K
Ravalli
41.98K
Silver Bow
34.77K
Lake
29.72K
Lincoln
19.33K
Ranking of Montana Counties By Population in 2016
Rank
County
Population
1 Yellowstone County 158,066
2 Missoula County 116,587
3 Gallatin County 104,999
4 Flathead County 97,901
5 Cascade County 81,655
6 Lewis and Clark County 67,001
7 Ravalli County 41,975
8 Silver Bow County 34,768
9 Lake County 29,722
10 Lincoln County 19,332
11 Hill County 16,440
12 Park County 16,138
13 Glacier County 13,707
14 Big Horn County 13,438
15 Custer County 11,844
16 Jefferson County 11,774
17 Sanders County 11,472
18 Richland County 11,442
19 Fergus County 11,333
20 Roosevelt County 11,223
21 Carbon County 10,480
22 Beaverhead County 9,462
23 Stillwater County 9,349
24 Dawson County 9,279
25 Rosebud County 9,263
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