Idaho Population By Ancestry in 2021 (ACS-5Yrs)
Updated on April 15, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 1.81M Idaho population, 425.86K had Other Groups ancestry (23.51%), 418.15K had Unclassified ancestry (23.08%), and 321.04K had English ancestry (17.72%).
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 states.
NB: People could belong to one or more ancestry groups.
Related Topics: Idaho ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Idaho Population By Ancestry in 2021
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| Ancestry | Population | Percent of Population (%) |
|---|---|---|
| Other Groups | 425862 | 23.51 |
| Unclassified | 418145 | 23.08 |
| English | 321036 | 17.72 |
| German | 297647 | 16.43 |
| Irish | 165573 | 9.14 |
| American | 106420 | 5.87 |
| Scottish | 57041 | 3.15 |
| Italian | 56875 | 3.14 |
| European | 55400 | 3.06 |
| Norwegian | 51588 | 2.85 |
| Swedish | 48024 | 2.65 |
| French (except Basque) | 39225 | 2.17 |
| Danish | 31540 | 1.74 |
| Dutch | 30849 | 1.70 |
| Welsh | 24985 | 1.38 |
| Polish | 21739 | 1.20 |
| Scotch Irish | 16831 | 0.93 |
| British | 16531 | 0.91 |
| Scandinavian | 16045 | 0.89 |
| Swiss | 13053 | 0.72 |
| Russian | 9080 | 0.50 |
| French Canadian | 8891 | 0.49 |
| Basque | 7710 | 0.43 |
| Portuguese | 6696 | 0.37 |
| Northern European | 6212 | 0.34 |
| Finnish | 5789 | 0.32 |
| Czech | 5284 | 0.29 |
| Canadian | 4999 | 0.28 |
| Ukrainian | 4702 | 0.26 |
| Greek | 4690 | 0.26 |
| Hungarian | 4286 | 0.24 |
| Subsaharan African | 3906 | 0.22 |
| Austrian | 3004 | 0.17 |
| Eastern European | 2707 | 0.15 |
| Romanian | 2408 | 0.13 |
| Yugoslavian | 1925 | 0.11 |
| Czechoslovakian | 1839 | 0.10 |
| Croatian | 1720 | 0.10 |
| Lithuanian | 1522 | 0.08 |
| Lebanese | 1252 | 0.07 |
| Belgian | 1170 | 0.07 |
| African | 1158 | 0.06 |
| West Indian (except Hispanic groups) | 1012 | 0.06 |
| Iraqi | 981 | 0.05 |
| Brazilian | 968 | 0.05 |
| Slovak | 942 | 0.05 |
| Armenian | 861 | 0.05 |
| Iranian | 852 | 0.05 |
| Icelander | 845 | 0.05 |
| Australian | 760 | 0.04 |
| Bulgarian | 723 | 0.04 |
| Arab | 707 | 0.04 |
| Sudanese | 551 | 0.03 |
| Celtic | 511 | 0.03 |
| Somali | 497 | 0.03 |
| Serbian | 487 | 0.03 |
| Syrian | 480 | 0.03 |
| Slovene | 461 | 0.03 |
| Pennsylvania German | 429 | 0.02 |
| Slavic | 398 | 0.02 |
| Haitian | 397 | 0.02 |
| Nigerian | 326 | 0.02 |
| Turkish | 300 | 0.02 |
| Israeli | 299 | 0.02 |
| Latvian | 246 | 0.01 |
| Afghan | 245 | 0.01 |
| Albania | 237 | 0.01 |
| German Russian | 232 | 0.01 |
| Ethiopian | 230 | 0.01 |
| New Zealander | 226 | 0.01 |
| Egyptian | 224 | 0.01 |
| South African | 214 | 0.01 |
| Luxembourger | 213 | 0.01 |
| Jamaican | 205 | 0.01 |
| Cajun | 200 | 0.01 |
| Trinidadian and Tobagonian | 167 | 0.01 |
| Macedonian | 147 | 0.01 |
| West Indian | 124 | 0.01 |
| Moroccan | 105 | 0.01 |
| Jordanian | 102 | 0.01 |
| Maltese | 79 | 0.004 |
| Dutch West Indian | 63 | 0.004 |
| Cape Verdean | 62 | 0.003 |
| Carpatho Rusyn | 58 | 0.003 |
| Ghanaian | 54 | 0.003 |
| Belizean | 40 | 0.002 |
| Assyrian/Chaldean/Syriac | 39 | 0.002 |
| Senegalese | 21 | 0.001 |
| Estonian | 16 | 0.001 |
| Guyanese | 16 | 0.001 |
| Barbadian | 15 | 0.001 |
| Cypriot | 11 | 0.001 |
| Palestinian | 10 | 0.001 |
| Zimbabwean | 7 | 0.000 |
| Kenyan | 5 | 0.000 |
| Ugandan | 5 | 0.000 |
| US Virgin Islander | 1 | 0.000 |
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