Ranking of Montana Counties By Population with European Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 27.92K people in Montana with European ancestry. Among all Montana counties, Gallatin County had the highest population with European ancestry (4.10K), followed by Missoula County (3.79K), and Cascade County (3.32K).
The chart and table below shows the top 10 counties with high number of people with European 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 European Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Gallatin County | 4102 |
| 2 | Missoula County | 3794 |
| 3 | Cascade County | 3316 |
| 4 | Yellowstone County | 3030 |
| 5 | Flathead County | 2781 |
| 6 | Lewis and Clark County | 1836 |
| 7 | Lincoln County | 1103 |
| 8 | Ravalli County | 923 |
| 9 | Silver Bow County | 618 |
| 10 | Hill County | 513 |
| 11 | Lake County | 498 |
| 12 | Park County | 492 |
| 13 | Sanders County | 425 |
| 14 | Richland County | 424 |
| 15 | Chouteau County | 419 |
| 16 | Jefferson County | 358 |
| 17 | Teton County | 280 |
| 18 | Roosevelt County | 253 |
| 19 | Deer Lodge County | 241 |
| 20 | Custer County | 206 |
| 21 | Carbon County | 198 |
| 22 | Pondera County | 175 |
| 23 | Toole County | 139 |
| 24 | Dawson County | 128 |
| 25 | Madison County | 116 |
| 26 | Powell County | 107 |
| 27 | Sheridan County | 105 |
| 28 | Beaverhead County | 104 |
| 29 | Stillwater County | 102 |
| 29 | Valley County | 102 |
| 30 | Fergus County | 100 |
| 31 | Daniels County | 96 |
| 32 | Blaine County | 81 |
| 33 | Musselshell County | 74 |
| 34 | Broadwater County | 68 |
| 35 | Granite County | 67 |
| 36 | Rosebud County | 63 |
| 37 | Sweet Grass County | 59 |
| 38 | Big Horn County | 51 |
| 39 | Garfield County | 49 |
| 39 | Mineral County | 49 |
| 40 | Carter County | 47 |
| 40 | Powder River County | 47 |
| 41 | McCone County | 45 |
| 42 | Fallon County | 34 |
| 43 | Judith Basin County | 29 |
| 44 | Wheatland County | 17 |
| 45 | Golden Valley County | 14 |
| 46 | Liberty County | 13 |
| 47 | Meagher County | 9 |
| 47 | Phillips County | 9 |
| 48 | Prairie County | 8 |
| 49 | Glacier County | 2 |
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