Ranking of Montana Counties By Population with Celtic Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 220 people in Montana with Celtic ancestry. Among all Montana counties, Lewis and Clark County had the highest population with Celtic ancestry (45), followed by Ravalli County (39), and Flathead County (29).
The chart and table below shows the top 10 counties with high number of people with Celtic 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 Counties By Population with Celtic Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Lewis and Clark County | 45 |
| 2 | Ravalli County | 39 |
| 3 | Flathead County | 29 |
| 4 | Sanders County | 21 |
| 5 | Missoula County | 15 |
| 6 | Silver Bow County | 14 |
| 6 | Yellowstone County | 14 |
| 7 | Gallatin County | 13 |
| 8 | Lake County | 12 |
| 9 | Cascade County | 5 |
| 10 | Madison County | 4 |
| 11 | Mineral County | 3 |
| 11 | Park County | 3 |
| 12 | Powell County | 2 |
| 13 | Carbon County | 1 |