Ranking of Montana Counties By Percentage of Population with German Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 256.64K people in Montana with German ancestry (23.81% of Montana population). Among all Montana counties, Fallon County had the highest percentage of its population with German ancestry (45.58%), followed by Liberty County (41.12%), and Treasure County (38.82%).

The chart and table below shows the top 10 counties with high percentage of its population having German ancestry.

You can see similar information for other states and for other ancestry groups in Montana.

Data Source: US Census Bureau.
Ranking of Montana Counties By Percentage of Population with German Ancestry in 2021
Fallon County
Liberty County
Treasure County
Powder River County
Prairie County
McCone County
Golden Valley County
Sweet Grass County
Dawson County
Richland County
Ranking of Montana Counties By Percentage of Population with German Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Fallon County 45.58
2 Liberty County 41.12
3 Treasure County 38.82
4 Powder River County 38.72
5 Prairie County 38.71
6 McCone County 36.90
7 Golden Valley County 35.61
8 Sweet Grass County 34.93
9 Dawson County 34.46
10 Richland County 34.29
11 Judith Basin County 33.88
12 Petroleum County 33.64
13 Carbon County 30.29
14 Carter County 29.87
15 Madison County 29.85
16 Broadwater County 29.77
17 Yellowstone County 29.50
18 Custer County 28.39
19 Stillwater County 28.38
20 Teton County 28.07
21 Pondera County 27.70
22 Powell County 27.19
22 Wheatland County 27.19
23 Phillips County 25.89
24 Lewis and Clark County 25.84
25 Fergus County 25.52
26 Sheridan County 25.33
27 Park County 25.10
28 Wibaux County 24.95
29 Gallatin County 24.22
30 Musselshell County 23.96
31 Ravalli County 23.89
32 Mineral County 23.88
33 Beaverhead County 23.44
34 Flathead County 23.39
35 Granite County 22.95
36 Valley County 22.75
37 Jefferson County 22.31
38 Missoula County 21.41
39 Deer Lodge County 21.23
40 Cascade County 21.09
41 Sanders County 20.53
42 Silver Bow County 20.39
43 Toole County 20.27
44 Chouteau County 19.95
45 Lincoln County 19.74
46 Daniels County 18.75
47 Meagher County 18.43
48 Lake County 16.79
49 Rosebud County 16.74
50 Hill County 15.95
51 Garfield County 14.10
52 Blaine County 11.50
53 Roosevelt County 10.18
54 Glacier County 7.67
55 Big Horn County 7.53