Douglas 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 19.71K Douglas County, IL population, 6.43K had Unclassified ancestry (32.62%), 4.96K had German ancestry (25.15%), and 2.67K had Other Groups ancestry (13.54%).
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.
Douglas County, IL Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| Unclassified | 6429 | 32.62 |
| German | 4956 | 25.15 |
| Other Groups | 2668 | 13.54 |
| English | 2068 | 10.49 |
| Irish | 1831 | 9.29 |
| American | 1640 | 8.32 |
| Pennsylvania German | 611 | 3.10 |
| European | 396 | 2.01 |
| Scottish | 304 | 1.54 |
| Dutch | 270 | 1.37 |
| French (except Basque) | 235 | 1.19 |
| Polish | 222 | 1.13 |
| Italian | 220 | 1.12 |
| Swedish | 148 | 0.75 |
| Welsh | 116 | 0.59 |
| Norwegian | 102 | 0.52 |
| Swiss | 100 | 0.51 |
| Scotch Irish | 80 | 0.41 |
| Romanian | 40 | 0.20 |
| British | 29 | 0.15 |
| Portuguese | 28 | 0.14 |
| Canadian | 27 | 0.14 |
| Australian | 24 | 0.12 |
| Armenian | 18 | 0.09 |
| Austrian | 16 | 0.08 |
| Czech | 14 | 0.07 |
| French Canadian | 14 | 0.07 |
| West Indian (except Hispanic groups) | 13 | 0.07 |
| Belgian | 11 | 0.06 |
| Scandinavian | 11 | 0.06 |
| Czechoslovakian | 9 | 0.05 |
| Ukrainian | 9 | 0.05 |
| Greek | 8 | 0.04 |
| Russian | 8 | 0.04 |
| Dutch West Indian | 8 | 0.04 |
| Finnish | 5 | 0.03 |
| Barbadian | 5 | 0.03 |
| Northern European | 3 | 0.02 |
| Danish | 2 | 0.01 |
| Subsaharan African | 2 | 0.01 |
| Ghanaian | 2 | 0.01 |
| Hungarian | 1 | 0.01 |