Ranking of Montana Cities and Places By Percentage of Population with Unclassified Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 243.21K people in Montana with Unclassified ancestry (22.56% of Montana population). Among all Montana cities and places with a population of at least 10K, Missoula city had the highest percentage of its population with Unclassified ancestry (29.70%), followed by Butte-Silver Bow (balance) (26.00%), and Belgrade city (25.10%).

The chart and table below shows the top 8 cities with high percentage of its population having Unclassified ancestry.

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

Data Source: US Census Bureau.
Ranking of Montana Cities and Places By Percentage of Population with Unclassified Ancestry in 2021
Missoula city
Butte-Silver Bow (balance)
Belgrade city
Bozeman city
Great Falls city
Kalispell city
Billings city
Helena city
Ranking of Montana Cities and Places By Percentage of Population with Unclassified Ancestry in 2021
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Rank Ciy or Place Percentage of Pop. (%)
1 Missoula city 29.70
2 Butte-Silver Bow (balance) 26.00
3 Belgrade city 25.10
4 Bozeman city 23.75
5 Great Falls city 21.51
6 Kalispell city 21.14
7 Billings city 20.33
8 Helena city 14.80