Whiteside County, IL Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 55.93K Whiteside County, IL population, 15.71K had German ancestry (28.08%), 13.70K had Unclassified ancestry (24.50%), and 9.62K had Other Groups ancestry (17.20%).
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 Illinois counties, and for Illinois.
NB: People could belong to one or more ancestry groups.
Data Source: US Census Bureau.
Whiteside County, IL Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| German | 15707 | 28.08 |
| Unclassified | 13703 | 24.50 |
| Other Groups | 9622 | 17.20 |
| Irish | 7370 | 13.18 |
| American | 4923 | 8.80 |
| English | 4596 | 8.22 |
| Dutch | 3642 | 6.51 |
| Swedish | 1448 | 2.59 |
| Italian | 1406 | 2.51 |
| Polish | 1399 | 2.50 |
| French (except Basque) | 1047 | 1.87 |
| Scottish | 874 | 1.56 |
| European | 655 | 1.17 |
| Norwegian | 553 | 0.99 |
| Belgian | 512 | 0.92 |
| Danish | 442 | 0.79 |
| Scotch Irish | 420 | 0.75 |
| British | 371 | 0.66 |
| Czech | 223 | 0.40 |
| Subsaharan African | 223 | 0.40 |
| Russian | 174 | 0.31 |
| Welsh | 164 | 0.29 |
| Portuguese | 150 | 0.27 |
| Scandinavian | 150 | 0.27 |
| Lithuanian | 141 | 0.25 |
| Hungarian | 118 | 0.21 |
| African | 117 | 0.21 |
| Austrian | 100 | 0.18 |
| Eastern European | 96 | 0.17 |
| Swiss | 94 | 0.17 |
| Pennsylvania German | 87 | 0.16 |
| French Canadian | 86 | 0.15 |
| Romanian | 81 | 0.14 |
| Nigerian | 75 | 0.13 |
| Greek | 70 | 0.13 |
| Slovak | 66 | 0.12 |
| Serbian | 58 | 0.10 |
| Czechoslovakian | 51 | 0.09 |
| Canadian | 48 | 0.09 |
| Slovene | 45 | 0.08 |
| Iranian | 40 | 0.07 |
| Israeli | 36 | 0.06 |
| West Indian (except Hispanic groups) | 32 | 0.06 |
| Ukrainian | 30 | 0.05 |
| Finnish | 28 | 0.05 |
| Croatian | 26 | 0.05 |
| Northern European | 24 | 0.04 |
| Belizean | 23 | 0.04 |
| Yugoslavian | 22 | 0.04 |
| Jordanian | 20 | 0.04 |
| Bulgarian | 18 | 0.03 |
| South African | 14 | 0.03 |
| Armenian | 13 | 0.02 |
| Australian | 12 | 0.02 |
| Lebanese | 10 | 0.02 |
| British West Indian | 9 | 0.02 |
| Slavic | 7 | 0.01 |
| Ethiopian | 5 | 0.01 |