St. Croix County, WI Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 4, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 92.50K St. Croix County, WI population, 34.66K had German ancestry (37.48%), 17.69K had Unclassified ancestry (19.12%), and 15.08K had Norwegian ancestry (16.31%).
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 Wisconsin counties, and for Wisconsin.
Data Source: US Census - ACS 5-Year Estimates (2021).
St. Croix County, WI Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| German | 34664 | 37.48 |
| Unclassified | 17687 | 19.12 |
| Norwegian | 15081 | 16.31 |
| Irish | 10312 | 11.15 |
| Other Groups | 7770 | 8.40 |
| Swedish | 7068 | 7.64 |
| English | 5819 | 6.29 |
| Polish | 4451 | 4.81 |
| French (except Basque) | 4187 | 4.53 |
| American | 4175 | 4.51 |
| Italian | 2680 | 2.90 |
| Scandinavian | 2283 | 2.47 |
| European | 2187 | 2.36 |
| Dutch | 1679 | 1.82 |
| Czech | 1524 | 1.65 |
| Danish | 1234 | 1.33 |
| French Canadian | 1166 | 1.26 |
| Finnish | 1135 | 1.23 |
| Scottish | 1106 | 1.20 |
| Swiss | 633 | 0.68 |
| Russian | 616 | 0.67 |
| British | 508 | 0.55 |
| Scotch Irish | 382 | 0.41 |
| Northern European | 348 | 0.38 |
| Belgian | 344 | 0.37 |
| Hungarian | 315 | 0.34 |
| Welsh | 276 | 0.30 |
| Austrian | 254 | 0.28 |
| Lebanese | 215 | 0.23 |
| Ukrainian | 204 | 0.22 |
| Serbian | 175 | 0.19 |
| Eastern European | 173 | 0.19 |
| Czechoslovakian | 172 | 0.19 |
| Croatian | 167 | 0.18 |
| Lithuanian | 154 | 0.17 |
| Luxembourger | 148 | 0.16 |
| Greek | 89 | 0.10 |
| Slavic | 84 | 0.09 |
| Australian | 73 | 0.08 |
| Slovene | 72 | 0.08 |
| Subsaharan African | 65 | 0.07 |
| Liberian | 46 | 0.05 |
| Slovak | 40 | 0.04 |
| Romanian | 35 | 0.04 |
| Canadian | 32 | 0.04 |
| Icelander | 30 | 0.03 |
| Portuguese | 28 | 0.03 |
| African | 18 | 0.02 |
| Latvian | 15 | 0.02 |
| Yugoslavian | 15 | 0.02 |
| Brazilian | 12 | 0.01 |
| Iranian | 7 | 0.01 |
| Bulgarian | 6 | 0.01 |
| Syrian | 5 | 0.01 |
| Celtic | 3 | 0.00 |
| Pennsylvania German | 3 | 0.00 |
| Egyptian | 1 | 0.00 |
| Cajun | 1 | 0.00 |
| Sudanese | 1 | 0.00 |