Jefferson 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 84.81K Jefferson County, WI population, 40.22K had German ancestry (47.43%), 16.15K had Unclassified ancestry (19.05%), and 10.26K had Other Groups ancestry (12.10%).
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).
Jefferson County, WI Population By Ancestry in 2021
Items per page:
0 of 0
| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| German | 40221 | 47.43 |
| Unclassified | 16153 | 19.05 |
| Other Groups | 10258 | 12.10 |
| Irish | 9778 | 11.53 |
| Polish | 5952 | 7.02 |
| English | 5920 | 6.98 |
| Norwegian | 5480 | 6.46 |
| American | 3118 | 3.68 |
| Italian | 2811 | 3.32 |
| French (except Basque) | 2151 | 2.54 |
| Swedish | 1345 | 1.59 |
| Scottish | 1213 | 1.43 |
| Dutch | 1197 | 1.41 |
| European | 1008 | 1.19 |
| Swiss | 884 | 1.04 |
| Czech | 655 | 0.77 |
| Danish | 452 | 0.53 |
| Russian | 413 | 0.49 |
| Welsh | 395 | 0.47 |
| British | 380 | 0.45 |
| French Canadian | 375 | 0.44 |
| Scandinavian | 365 | 0.43 |
| Hungarian | 329 | 0.39 |
| Belgian | 326 | 0.38 |
| Scotch Irish | 306 | 0.36 |
| Austrian | 240 | 0.28 |
| Serbian | 237 | 0.28 |
| Lithuanian | 219 | 0.26 |
| Finnish | 209 | 0.25 |
| Slovak | 140 | 0.17 |
| Slovene | 140 | 0.17 |
| Greek | 132 | 0.16 |
| Northern European | 131 | 0.15 |
| Canadian | 126 | 0.15 |
| Albania | 116 | 0.14 |
| Croatian | 101 | 0.12 |
| Lebanese | 100 | 0.12 |
| Ukrainian | 96 | 0.11 |
| Eastern European | 93 | 0.11 |
| German Russian | 78 | 0.09 |
| Subsaharan African | 67 | 0.08 |
| Yugoslavian | 57 | 0.07 |
| Armenian | 51 | 0.06 |
| African | 46 | 0.05 |
| Czechoslovakian | 43 | 0.05 |
| Iranian | 42 | 0.05 |
| Australian | 38 | 0.05 |
| Romanian | 35 | 0.04 |
| West Indian (except Hispanic groups) | 34 | 0.04 |
| Trinidadian and Tobagonian | 26 | 0.03 |
| Latvian | 20 | 0.02 |
| Portuguese | 14 | 0.02 |
| Celtic | 10 | 0.01 |
| Liberian | 10 | 0.01 |
| Estonian | 8 | 0.01 |
| Luxembourger | 8 | 0.01 |
| Cajun | 6 | 0.01 |
| Israeli | 6 | 0.01 |
| Ethiopian | 6 | 0.01 |
| Belizean | 6 | 0.01 |
| Arab | 5 | 0.01 |
| Nigerian | 5 | 0.01 |
| Assyrian/Chaldean/Syriac | 4 | 0.01 |
| Pennsylvania German | 4 | 0.01 |
| Syrian | 3 | 0.00 |
| Jamaican | 2 | 0.00 |
| Slavic | 1 | 0.00 |