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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.15K people in Montana with Slavic ancestry (0.11% of Montana population). Among all Montana counties, Judith Basin County had the highest percentage of its population with Slavic ancestry (0.95%), followed by Silver Bow County (0.59%), and Rosebud County (0.41%).

The chart and table below shows the top 10 counties with high percentage of its population having Slavic 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 Slavic Ancestry in 2021
Judith Basin County
Silver Bow County
Rosebud County
Cascade County
Hill County
Custer County
Lewis and Clark County
Teton County
Gallatin County
Missoula County
Ranking of Montana Counties By Percentage of Population with Slavic Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Judith Basin County 0.95
2 Silver Bow County 0.59
3 Rosebud County 0.41
4 Cascade County 0.30
5 Hill County 0.20
6 Custer County 0.13
6 Lewis and Clark County 0.13
6 Teton County 0.13
7 Gallatin County 0.10
7 Missoula County 0.10
8 Lake County 0.09
9 Broadwater County 0.08
9 Fergus County 0.08
9 Yellowstone County 0.08
10 Ravalli County 0.07
11 Lincoln County 0.06
12 Flathead County 0.04
13 Pondera County 0.03
14 Park County 0.02
15 Carbon County 0.01
15 Jefferson County 0.01
15 Powell County 0.01