St. Clair County, MI Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 160.07K St. Clair County, MI population, 42.46K had German ancestry (26.53%), 38.72K had Unclassified ancestry (24.19%), and 19.87K had Irish ancestry (12.41%).
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 Michigan counties, and for Michigan.
Data Source: US Census - ACS 5-Year Estimates (2021).
St. Clair County, MI Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| German | 42457 | 26.53 |
| Unclassified | 38720 | 24.19 |
| Irish | 19867 | 12.41 |
| Other Groups | 19859 | 12.41 |
| Polish | 18822 | 11.76 |
| English | 15752 | 9.84 |
| French (except Basque) | 9737 | 6.08 |
| Italian | 9207 | 5.75 |
| American | 8741 | 5.46 |
| Scottish | 4661 | 2.91 |
| French Canadian | 4332 | 2.71 |
| Dutch | 2722 | 1.70 |
| Belgian | 2292 | 1.43 |
| European | 2216 | 1.38 |
| Swedish | 1738 | 1.09 |
| Hungarian | 1501 | 0.94 |
| Scotch Irish | 1466 | 0.92 |
| Canadian | 1367 | 0.85 |
| Russian | 1091 | 0.68 |
| Norwegian | 1027 | 0.64 |
| British | 783 | 0.49 |
| Finnish | 727 | 0.45 |
| Greek | 675 | 0.42 |
| Welsh | 668 | 0.42 |
| Lebanese | 544 | 0.34 |
| Czech | 505 | 0.32 |
| Slovak | 495 | 0.31 |
| Romanian | 483 | 0.30 |
| Scandinavian | 458 | 0.29 |
| Subsaharan African | 453 | 0.28 |
| Danish | 394 | 0.25 |
| Ukrainian | 385 | 0.24 |
| Austrian | 382 | 0.24 |
| Eastern European | 315 | 0.20 |
| Lithuanian | 287 | 0.18 |
| African | 283 | 0.18 |
| Czechoslovakian | 279 | 0.17 |
| Macedonian | 261 | 0.16 |
| Yugoslavian | 247 | 0.15 |
| Croatian | 176 | 0.11 |
| Northern European | 171 | 0.11 |
| Swiss | 159 | 0.10 |
| Nigerian | 143 | 0.09 |
| Serbian | 140 | 0.09 |
| Egyptian | 122 | 0.08 |
| West Indian (except Hispanic groups) | 117 | 0.07 |
| Australian | 107 | 0.07 |
| Portuguese | 103 | 0.06 |
| Slavic | 102 | 0.06 |
| Estonian | 100 | 0.06 |
| Armenian | 99 | 0.06 |
| Albania | 94 | 0.06 |
| Celtic | 84 | 0.05 |
| Syrian | 79 | 0.05 |
| Cajun | 78 | 0.05 |
| Assyrian/Chaldean/Syriac | 59 | 0.04 |
| Maltese | 58 | 0.04 |
| Trinidadian and Tobagonian | 54 | 0.03 |
| Jamaican | 49 | 0.03 |
| Palestinian | 42 | 0.03 |
| Iranian | 31 | 0.02 |
| Iraqi | 30 | 0.02 |
| Ghanaian | 27 | 0.02 |
| Pennsylvania German | 25 | 0.02 |
| Arab | 24 | 0.02 |
| Turkish | 23 | 0.01 |
| Icelander | 22 | 0.01 |
| Bulgarian | 11 | 0.01 |
| Slovene | 11 | 0.01 |
| Haitian | 11 | 0.01 |
| Carpatho Rusyn | 10 | 0.01 |
| Moroccan | 7 | 0.00 |
| Barbadian | 3 | 0.00 |
| Brazilian | 1 | 0.00 |