Montana Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 1.08M Montana population, 256.64K had German ancestry (23.81%), 243.21K had Unclassified ancestry (22.56%), and 181.26K had Other Groups ancestry (16.82%).
The chart below shows the top 10 ancestry groups, and the table below shows both the number and percentages for all ancestry groups.
You can see similar information for other states, Montana counties, congressional districts, and the United States.
NB: People could belong to one or more ancestry groups.
Related Topics: Montana ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates (2021).
Montana Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| German | 256644 | 23.81 |
| Unclassified | 243213 | 22.56 |
| Other Groups | 181260 | 16.82 |
| Irish | 146233 | 13.57 |
| English | 129462 | 12.01 |
| Norwegian | 89699 | 8.32 |
| American | 52827 | 4.90 |
| Italian | 38889 | 3.61 |
| French (except Basque) | 32631 | 3.03 |
| Scottish | 29851 | 2.77 |
| Swedish | 29457 | 2.73 |
| European | 27919 | 2.59 |
| Dutch | 18982 | 1.76 |
| Polish | 18912 | 1.75 |
| Scotch Irish | 15201 | 1.41 |
| Scandinavian | 13014 | 1.21 |
| Danish | 11971 | 1.11 |
| Welsh | 9505 | 0.88 |
| Russian | 8805 | 0.82 |
| French Canadian | 7795 | 0.72 |
| Finnish | 7003 | 0.65 |
| Czech | 6760 | 0.63 |
| British | 6530 | 0.61 |
| Northern European | 5453 | 0.51 |
| Swiss | 5395 | 0.50 |
| Austrian | 4230 | 0.39 |
| Hungarian | 3673 | 0.34 |
| Ukrainian | 3463 | 0.32 |
| Greek | 2775 | 0.26 |
| Croatian | 2357 | 0.22 |
| Belgian | 2319 | 0.22 |
| Eastern European | 2166 | 0.20 |
| Portuguese | 2005 | 0.19 |
| Canadian | 1967 | 0.18 |
| Czechoslovakian | 1583 | 0.15 |
| Lithuanian | 1540 | 0.14 |
| Yugoslavian | 1533 | 0.14 |
| Subsaharan African | 1478 | 0.14 |
| Slovak | 1345 | 0.13 |
| Slavic | 1150 | 0.11 |
| Romanian | 928 | 0.09 |
| West Indian (except Hispanic groups) | 887 | 0.08 |
| Serbian | 857 | 0.08 |
| Slovene | 856 | 0.08 |
| African | 839 | 0.08 |
| Lebanese | 772 | 0.07 |
| Armenian | 672 | 0.06 |
| Basque | 581 | 0.05 |
| Pennsylvania German | 579 | 0.05 |
| Iranian | 402 | 0.04 |
| Australian | 399 | 0.04 |
| Bulgarian | 384 | 0.04 |
| German Russian | 349 | 0.03 |
| Turkish | 305 | 0.03 |
| Icelander | 260 | 0.02 |
| Ethiopian | 232 | 0.02 |
| Haitian | 228 | 0.02 |
| Celtic | 220 | 0.02 |
| Brazilian | 203 | 0.02 |
| Jamaican | 197 | 0.02 |
| Egyptian | 181 | 0.02 |
| West Indian | 175 | 0.02 |
| Luxembourger | 158 | 0.02 |
| Arab | 148 | 0.01 |
| South African | 127 | 0.01 |
| Alsatian | 114 | 0.01 |
| Dutch West Indian | 99 | 0.01 |
| Latvian | 91 | 0.01 |
| Albania | 84 | 0.01 |
| Nigerian | 81 | 0.01 |
| Israeli | 74 | 0.01 |
| Maltese | 65 | 0.01 |
| Belizean | 64 | 0.01 |
| Estonian | 63 | 0.01 |
| Macedonian | 60 | 0.01 |
| New Zealander | 57 | 0.01 |
| Syrian | 54 | 0.01 |
| Cajun | 53 | 0.01 |
| Trinidadian and Tobagonian | 50 | 0.01 |
| Iraqi | 39 | 0.00 |
| Assyrian/Chaldean/Syriac | 33 | 0.00 |
| Palestinian | 30 | 0.00 |
| Guyanese | 28 | 0.00 |
| Cypriot | 27 | 0.00 |
| Bermudan | 27 | 0.00 |
| Barbadian | 26 | 0.00 |
| Bahamian | 21 | 0.00 |
| Moroccan | 14 | 0.00 |
| Ghanaian | 14 | 0.00 |
| Zimbabwean | 9 | 0.00 |
| Afghan | 6 | 0.00 |