Ranking of Montana Cities and Places By Percentage of Population with Irish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 146.23K people in Montana with Irish ancestry (13.57% of Montana population). Among all Montana cities and places with a population of at least 10K, Butte-Silver Bow (balance) had the highest percentage of its population with Irish ancestry (24.22%), followed by Helena city (17.70%), and Missoula city (16.36%).
The chart and table below shows the top 8 cities with high percentage of its population having Irish ancestry.
You can see similar information for other states and for other ancestry groups in Montana.
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Related Topics: Montana ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Montana Cities and Places By Percentage of Population with Irish Ancestry in 2021
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| Rank | Ciy or Place | Percentage of Pop. (%) |
|---|---|---|
| 1 | Butte-Silver Bow (balance) | 24.22 |
| 2 | Helena city | 17.70 |
| 3 | Missoula city | 16.36 |
| 4 | Belgrade city | 15.14 |
| 5 | Kalispell city | 14.67 |
| 6 | Bozeman city | 13.94 |
| 7 | Great Falls city | 12.34 |
| 8 | Billings city | 12.05 |