Garfield County, MT Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 972 Garfield County, MT population, 321 had American ancestry (33.03%), 137 had German ancestry (14.10%), and 124 had Irish ancestry (12.76%).
The chart below shows the top 10 ancestry groups by percentage, and the table below shows both the population and percentages for many ancestry groups.
You can see similar information for other Montana counties, and for Montana.
NB: People could belong to one or more ancestry groups.
Data Source: US Census Bureau.
Garfield County, MT Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| American | 321 | 33.03 |
| German | 137 | 14.10 |
| Irish | 124 | 12.76 |
| Unclassified | 118 | 12.14 |
| English | 99 | 10.19 |
| Norwegian | 83 | 8.54 |
| Scottish | 54 | 5.56 |
| European | 49 | 5.04 |
| French (except Basque) | 37 | 3.81 |
| Scotch Irish | 20 | 2.06 |
| Welsh | 17 | 1.75 |
| Other Groups | 14 | 1.44 |
| Northern European | 11 | 1.13 |
| Scandinavian | 11 | 1.13 |
| Polish | 10 | 1.03 |
| British | 9 | 0.93 |
| Swiss | 9 | 0.93 |
| Czech | 8 | 0.82 |
| French Canadian | 6 | 0.62 |
| Hungarian | 6 | 0.62 |
| Canadian | 2 | 0.21 |
| Greek | 1 | 0.10 |