Ranking of Montana Counties By Percentage of Population that are White Alone in 2015

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2015, among all Montana counties, Garfield County had the highest percentage of its population who identified their race as White Alone (98.44%), followed by Carter County (98.26%), and Petroleum County (98.11%).

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 other racial and ethnicity groups in the United States.

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

See this for other years:
Ranking of Montana Counties By Percentage of Pop. that are White Alone in 2015
Garfield
Carter
Petroleum
Judith Basin
Liberty
Wibaux
Meagher
Fallon
Madison
Carbon
Ranking of Montana Counties By Percentage of Pop. that are White Alone in 2015
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Rank County % of County Population
1 Garfield County 98.44
2 Carter County 98.26
3 Petroleum County 98.11
4 Judith Basin County 97.77
5 Liberty County 97.41
6 Wibaux County 97.29
7 Meagher County 97.09
8 Fallon County 96.82
9 Madison County 96.81
10 Carbon County 96.52
11 McCone County 96.47
12 Park County 96.32
13 Sweet Grass County 96.3
14 Fergus County 96.23
15 Broadwater County 96.2
16 Granite County 96.08
17 Stillwater County 96.04
18 Ravalli County 96.01
19 Lincoln County 95.74
20 Powder River County 95.59
21 Teton County 95.4
22 Flathead County 95.35
23 Daniels County 95.2
24 Gallatin County 95.09
25 Jefferson County 95.08
26 Beaverhead County 95.06
27 Custer County 95.03
28 Dawson County 94.7
29 Musselshell County 94.56
30 Prairie County 94.47
31 Golden Valley County 94.38
32 Lewis and Clark County 94.31
33 Silver Bow County 94.3
34 Sheridan County 94.28
35 Wheatland County 94.12
36 Richland County 94.09
37 Treasure County 93.97
38 Mineral County 93.9
39 Deer Lodge County 92.73
40 Sanders County 92.35
41 Powell County 92.17
42 Missoula County 92.11
43 Yellowstone County 91.23
44 Toole County 90.85
45 Cascade County 89.09
46 Valley County 86.58
47 Phillips County 86.31
48 Pondera County 82.62
49 Chouteau County 78.07
50 Hill County 72.69
51 Lake County 67.4
52 Rosebud County 57.96
53 Blaine County 47.45
54 Roosevelt County 37.64
55 Glacier County 32.08
56 Big Horn County 29.54