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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 402 people in Montana with Iranian ancestry (0.04% of Montana population). Among all Montana counties, Stillwater County had the highest percentage of its population with Iranian ancestry (0.86%), followed by Prairie County (0.57%), and Deer Lodge County (0.50%).

The chart and table below shows the top 10 counties with high percentage of its population having Iranian 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 Iranian Ancestry in 2021
Stillwater County
Prairie County
Deer Lodge County
Cascade County
Gallatin County
Yellowstone County
Granite County
Beaverhead County
Custer County
Lewis and Clark County
Ranking of Montana Counties By Percentage of Population with Iranian Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Stillwater County 0.86
2 Prairie County 0.57
3 Deer Lodge County 0.50
4 Cascade County 0.09
5 Gallatin County 0.05
6 Yellowstone County 0.04
7 Granite County 0.03
8 Beaverhead County 0.02
8 Custer County 0.02
8 Lewis and Clark County 0.02
8 Missoula County 0.02
9 Flathead County 0.01
9 Silver Bow County 0.01