Lake 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 714.48K Lake County, IL population, 248.79K had Other Groups ancestry (34.82%), 130.24K had Unclassified ancestry (18.23%), and 119.34K had German ancestry (16.70%).
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.
Lake County, IL Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| Other Groups | 248788 | 34.82 |
| Unclassified | 130243 | 18.23 |
| German | 119341 | 16.70 |
| Irish | 74683 | 10.45 |
| Polish | 56472 | 7.90 |
| Italian | 42706 | 5.98 |
| English | 41390 | 5.79 |
| American | 24193 | 3.39 |
| Russian | 17767 | 2.49 |
| Swedish | 15284 | 2.14 |
| French (except Basque) | 11325 | 1.59 |
| Norwegian | 10760 | 1.51 |
| European | 10358 | 1.45 |
| Scottish | 8833 | 1.24 |
| Eastern European | 7556 | 1.06 |
| Dutch | 6909 | 0.97 |
| Greek | 6899 | 0.97 |
| Ukrainian | 6033 | 0.84 |
| Czech | 4946 | 0.69 |
| Subsaharan African | 4495 | 0.63 |
| Lithuanian | 4232 | 0.59 |
| Hungarian | 4203 | 0.59 |
| West Indian (except Hispanic groups) | 3714 | 0.52 |
| Danish | 3670 | 0.51 |
| Scotch Irish | 3477 | 0.49 |
| British | 3235 | 0.45 |
| Romanian | 2851 | 0.40 |
| Austrian | 2796 | 0.39 |
| French Canadian | 2688 | 0.38 |
| African | 2450 | 0.34 |
| Scandinavian | 2338 | 0.33 |
| Finnish | 2331 | 0.33 |
| Welsh | 2125 | 0.30 |
| Croatian | 1875 | 0.26 |
| Slovak | 1763 | 0.25 |
| Belizean | 1646 | 0.23 |
| Swiss | 1548 | 0.22 |
| Canadian | 1390 | 0.20 |
| Jamaican | 1263 | 0.18 |
| Bulgarian | 1236 | 0.17 |
| Belgian | 1164 | 0.16 |
| Slovene | 1125 | 0.16 |
| Yugoslavian | 1115 | 0.16 |
| Czechoslovakian | 1056 | 0.15 |
| Iranian | 1044 | 0.15 |
| Serbian | 998 | 0.14 |
| Portuguese | 928 | 0.13 |
| Northern European | 906 | 0.13 |
| Nigerian | 896 | 0.13 |
| Latvian | 875 | 0.12 |
| Armenian | 693 | 0.10 |
| Lebanese | 623 | 0.09 |
| Brazilian | 606 | 0.09 |
| Slavic | 551 | 0.08 |
| Luxembourger | 508 | 0.07 |
| Haitian | 455 | 0.06 |
| Palestinian | 429 | 0.06 |
| Turkish | 406 | 0.06 |
| Assyrian/Chaldean/Syriac | 384 | 0.05 |
| Egyptian | 363 | 0.05 |
| Israeli | 322 | 0.05 |
| Australian | 311 | 0.04 |
| Iraqi | 296 | 0.04 |
| South African | 244 | 0.03 |
| Syrian | 222 | 0.03 |
| Arab | 212 | 0.03 |
| Ghanaian | 191 | 0.03 |
| Kenyan | 188 | 0.03 |
| West Indian | 139 | 0.02 |
| Jordanian | 125 | 0.02 |
| Estonian | 115 | 0.02 |
| Icelander | 97 | 0.01 |
| Albania | 92 | 0.01 |
| Pennsylvania German | 86 | 0.01 |
| German Russian | 85 | 0.01 |
| Macedonian | 82 | 0.01 |
| Trinidadian and Tobagonian | 80 | 0.01 |
| Soviet Union | 73 | 0.01 |
| Ethiopian | 73 | 0.01 |
| Ugandan | 62 | 0.01 |
| British West Indian | 60 | 0.01 |
| Maltese | 53 | 0.01 |
| Barbadian | 48 | 0.01 |
| Guyanese | 40 | 0.01 |
| Cape Verdean | 30 | 0.00 |
| Carpatho Rusyn | 23 | 0.00 |
| Liberian | 22 | 0.00 |
| Afghan | 16 | 0.00 |
| Moroccan | 16 | 0.00 |
| Senegalese | 15 | 0.00 |
| US Virgin Islander | 15 | 0.00 |
| Cajun | 14 | 0.00 |
| Sierra Leonean | 13 | 0.00 |
| Bermudan | 7 | 0.00 |
| Celtic | 5 | 0.00 |