DeKalb County, IL Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 100.92K DeKalb County, IL population, 25.64K had German ancestry (25.41%), 21.97K had Other Groups ancestry (21.77%), and 20.96K had Unclassified ancestry (20.77%).
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 Illinois counties, and for Illinois.
Data Source: US Census - ACS 5-Year Estimates (2021).
DeKalb County, IL Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| German | 25643 | 25.41 |
| Other Groups | 21966 | 21.77 |
| Unclassified | 20964 | 20.77 |
| Irish | 15256 | 15.12 |
| English | 9103 | 9.02 |
| Italian | 7311 | 7.24 |
| Polish | 6260 | 6.20 |
| Swedish | 4920 | 4.88 |
| Norwegian | 4550 | 4.51 |
| American | 2994 | 2.97 |
| French (except Basque) | 2313 | 2.29 |
| Scottish | 2049 | 2.03 |
| European | 1285 | 1.27 |
| Czech | 1028 | 1.02 |
| Dutch | 954 | 0.95 |
| Russian | 682 | 0.68 |
| Subsaharan African | 668 | 0.66 |
| Yugoslavian | 645 | 0.64 |
| Ukrainian | 637 | 0.63 |
| Greek | 632 | 0.63 |
| Danish | 615 | 0.61 |
| Hungarian | 599 | 0.59 |
| Scandinavian | 535 | 0.53 |
| Swiss | 522 | 0.52 |
| Scotch Irish | 520 | 0.52 |
| Lithuanian | 508 | 0.50 |
| French Canadian | 485 | 0.48 |
| Welsh | 470 | 0.47 |
| Romanian | 438 | 0.43 |
| African | 429 | 0.43 |
| British | 309 | 0.31 |
| West Indian (except Hispanic groups) | 263 | 0.26 |
| Finnish | 261 | 0.26 |
| Palestinian | 242 | 0.24 |
| Eastern European | 214 | 0.21 |
| Czechoslovakian | 213 | 0.21 |
| Austrian | 192 | 0.19 |
| Guyanese | 182 | 0.18 |
| Slovak | 179 | 0.18 |
| Slovene | 170 | 0.17 |
| Belgian | 163 | 0.16 |
| Croatian | 162 | 0.16 |
| Jamaican | 147 | 0.15 |
| Serbian | 146 | 0.14 |
| Nigerian | 110 | 0.11 |
| Australian | 95 | 0.09 |
| British West Indian | 93 | 0.09 |
| Lebanese | 91 | 0.09 |
| Canadian | 85 | 0.08 |
| Bulgarian | 80 | 0.08 |
| Northern European | 80 | 0.08 |
| Armenian | 79 | 0.08 |
| Brazilian | 75 | 0.07 |
| Estonian | 59 | 0.06 |
| Israeli | 58 | 0.06 |
| Jordanian | 52 | 0.05 |
| Sudanese | 52 | 0.05 |
| Slavic | 49 | 0.05 |
| Latvian | 45 | 0.05 |
| Turkish | 45 | 0.05 |
| Ghanaian | 43 | 0.04 |
| Luxembourger | 28 | 0.03 |
| Portuguese | 25 | 0.03 |
| Haitian | 23 | 0.02 |
| Ethiopian | 13 | 0.01 |
| Iranian | 10 | 0.01 |
| Egyptian | 9 | 0.01 |
| Pennsylvania German | 9 | 0.01 |
| Kenyan | 7 | 0.01 |
| Albania | 4 | 0.00 |
| South African | 4 | 0.00 |
| Ugandan | 4 | 0.00 |
| Macedonian | 3 | 0.00 |