Ada County, ID Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 485.25K Ada County, ID population, 109.48K had Unclassified ancestry (22.56%), 95.31K had Other Groups ancestry (19.64%), and 94.12K had English ancestry (19.40%).
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 Idaho counties, and for Idaho.
Related Topics: Ada County, ID ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates (2021).
Ada County, ID Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Unclassified | 109484 | 22.56 |
| Other Groups | 95310 | 19.64 |
| English | 94117 | 19.40 |
| German | 83516 | 17.21 |
| Irish | 55491 | 11.44 |
| American | 21703 | 4.47 |
| Italian | 19507 | 4.02 |
| European | 16822 | 3.47 |
| Scottish | 15047 | 3.10 |
| Norwegian | 13784 | 2.84 |
| Swedish | 12595 | 2.60 |
| French (except Basque) | 11744 | 2.42 |
| Dutch | 9135 | 1.88 |
| Polish | 8226 | 1.70 |
| Welsh | 6981 | 1.44 |
| Danish | 6727 | 1.39 |
| Scandinavian | 5043 | 1.04 |
| British | 4425 | 0.91 |
| Basque | 4408 | 0.91 |
| Scotch Irish | 4261 | 0.88 |
| French Canadian | 3238 | 0.67 |
| Russian | 2890 | 0.60 |
| Swiss | 2780 | 0.57 |
| Northern European | 2485 | 0.51 |
| Subsaharan African | 2385 | 0.49 |
| Portuguese | 2123 | 0.44 |
| Ukrainian | 1865 | 0.38 |
| Czech | 1847 | 0.38 |
| Hungarian | 1570 | 0.32 |
| Greek | 1545 | 0.32 |
| Canadian | 1148 | 0.24 |
| Eastern European | 1095 | 0.23 |
| Finnish | 1086 | 0.22 |
| Yugoslavian | 1028 | 0.21 |
| Romanian | 901 | 0.19 |
| Iraqi | 885 | 0.18 |
| Czechoslovakian | 789 | 0.16 |
| Austrian | 700 | 0.14 |
| Croatian | 696 | 0.14 |
| Lithuanian | 687 | 0.14 |
| Lebanese | 679 | 0.14 |
| Sudanese | 533 | 0.11 |
| West Indian (except Hispanic groups) | 515 | 0.11 |
| Somali | 497 | 0.10 |
| African | 476 | 0.10 |
| Belgian | 436 | 0.09 |
| Slovak | 407 | 0.08 |
| Icelander | 348 | 0.07 |
| Arab | 336 | 0.07 |
| Iranian | 328 | 0.07 |
| Serbian | 311 | 0.06 |
| Armenian | 280 | 0.06 |
| Australian | 276 | 0.06 |
| Israeli | 263 | 0.05 |
| Haitian | 228 | 0.05 |
| Brazilian | 208 | 0.04 |
| Nigerian | 187 | 0.04 |
| Bulgarian | 183 | 0.04 |
| Slovene | 182 | 0.04 |
| Afghan | 161 | 0.03 |
| Syrian | 154 | 0.03 |
| Pennsylvania German | 154 | 0.03 |
| Albania | 152 | 0.03 |
| German Russian | 150 | 0.03 |
| Celtic | 139 | 0.03 |
| Ethiopian | 131 | 0.03 |
| Slavic | 113 | 0.02 |
| Jamaican | 106 | 0.02 |
| Latvian | 102 | 0.02 |
| Trinidadian and Tobagonian | 102 | 0.02 |
| Cajun | 90 | 0.02 |
| South African | 76 | 0.02 |
| Jordanian | 74 | 0.02 |
| Turkish | 71 | 0.02 |
| New Zealander | 65 | 0.01 |
| West Indian | 64 | 0.01 |
| Cape Verdean | 62 | 0.01 |
| Moroccan | 57 | 0.01 |
| Luxembourger | 51 | 0.01 |
| Carpatho Rusyn | 45 | 0.01 |
| Macedonian | 21 | 0.00 |
| Senegalese | 21 | 0.00 |
| Guyanese | 16 | 0.00 |
| Barbadian | 15 | 0.00 |
| Assyrian/Chaldean/Syriac | 11 | 0.00 |
| Cypriot | 11 | 0.00 |
| Egyptian | 9 | 0.00 |
| Maltese | 6 | 0.00 |