Ranking of Montana Counties By Non-Hispanic Voting-age Population from Census 2020

Updated on August 29, 2023.

According to the data from the United States 2020 decennial Census, in April 2020, among all of Montana counties, Yellowstone County had the highest voting-age population who identified as Non-Hispanic (not hispanic or latino) (120.30K), followed by Gallatin County (91.32K), and Missoula County (90.43K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Montana counties based on the voting-age population who identified as non-hispanic.

You can see similar ranking information for other states and also for the different racial groups in Montana.

Ranking of Montana Counties By Non-Hispanic Voting-age Population from Census 2020
Yellowstone
Gallatin
Missoula
Flathead
Cascade
Lewis and Clark
Ravalli
Silver Bow
Lake
Lincoln
Ranking of Montana Counties By Non-Hispanic Voting-age Population from Census 2020
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Rank County Non-Hispanic Voting-age Population
1 Yellowstone County 120299
2 Gallatin County 91316
3 Missoula County 90425
4 Flathead County 79359
5 Cascade County 62937
6 Lewis and Clark County 54022
7 Ravalli County 34633
8 Silver Bow County 27041
9 Lake County 23152
10 Lincoln County 15665
11 Park County 13929
12 Hill County 11693
13 Sanders County 9987
14 Jefferson County 9396
15 Glacier County 9279
16 Custer County 9009
17 Fergus County 8939
18 Big Horn County 8418
19 Carbon County 8339
20 Richland County 8303
21 Deer Lodge County 7694
22 Roosevelt County 7313
23 Beaverhead County 7221
24 Madison County 7048
25 Stillwater County 6918
26 Dawson County 6822
27 Rosebud County 5946
28 Powell County 5819
29 Valley County 5713
30 Broadwater County 5184
31 Blaine County 4869
32 Teton County 4718
33 Pondera County 4407
34 Chouteau County 4249
35 Toole County 3852
36 Musselshell County 3717
37 Mineral County 3631
38 Phillips County 3167
39 Sweet Grass County 2859
40 Sheridan County 2725
41 Granite County 2650
42 Fallon County 2181
43 Judith Basin County 1615
44 Wheatland County 1588
45 Meagher County 1555
46 Liberty County 1486
47 Powder River County 1356
48 McCone County 1336
49 Daniels County 1285
50 Carter County 1078
51 Garfield County 888
52 Prairie County 864
53 Wibaux County 712
54 Golden Valley County 643
55 Treasure County 556
56 Petroleum County 409