Ranking of Montana Counties By Percentage of Population that are White Alone in 2010

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2010, among all Montana counties, Petroleum County had the highest percentage of its population who identified their race as White Alone (99.39%), followed by Garfield County (98.74%), and Liberty County (98.3%).

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 2010
Petroleum
Garfield
Liberty
Carter
Judith Basin
Wibaux
McCone
Meagher
Granite
Fallon
Ranking of Montana Counties By Percentage of Pop. that are White Alone in 2010
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Rank County % of County Population
1 Petroleum County 99.39
2 Garfield County 98.74
3 Liberty County 98.3
4 Carter County 98.27
4 Judith Basin County 98.27
5 Wibaux County 98.21
6 McCone County 98.17
7 Meagher County 98.03
8 Granite County 97.72
9 Fallon County 97.65
10 Carbon County 97.61
11 Madison County 97.52
12 Stillwater County 97.28
13 Park County 97.15
14 Sweet Grass County 97.04
15 Fergus County 96.86
16 Musselshell County 96.82
17 Prairie County 96.79
18 Broadwater County 96.64
19 Wheatland County 96.52
20 Teton County 96.48
21 Lincoln County 96.42
21 Ravalli County 96.42
22 Golden Valley County 96.36
23 Powder River County 96.15
24 Richland County 96.12
25 Dawson County 96.08
26 Flathead County 95.95
27 Custer County 95.9
28 Jefferson County 95.84
29 Beaverhead County 95.8
29 Treasure County 95.8
30 Gallatin County 95.72
30 Sheridan County 95.72
31 Daniels County 95.71
32 Mineral County 95.25
33 Silver Bow County 95.01
34 Lewis and Clark County 94.67
35 Deer Lodge County 93.62
36 Missoula County 93.1
37 Powell County 92.79
38 Toole County 92.57
39 Sanders County 92.14
40 Yellowstone County 92.02
41 Cascade County 89.94
42 Phillips County 87.72
43 Valley County 87.42
44 Pondera County 82.97
45 Chouteau County 75.94
46 Hill County 74.15
47 Lake County 69.72
48 Rosebud County 61.57
49 Blaine County 48.16
50 Roosevelt County 35.89
51 Big Horn County 31.65
52 Glacier County 31.24