Cass 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 13.06K Cass County, IL population, 3.97K had Unclassified ancestry (30.37%), 3.72K had Other Groups ancestry (28.47%), and 2.69K had German ancestry (20.59%).
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).
Cass County, IL Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Unclassified | 3966 | 30.37 |
| Other Groups | 3718 | 28.47 |
| German | 2689 | 20.59 |
| Irish | 1232 | 9.44 |
| English | 1179 | 9.03 |
| American | 883 | 6.76 |
| Subsaharan African | 211 | 1.62 |
| Swedish | 187 | 1.43 |
| Italian | 183 | 1.40 |
| European | 157 | 1.20 |
| Dutch | 132 | 1.01 |
| African | 132 | 1.01 |
| French (except Basque) | 116 | 0.89 |
| Polish | 116 | 0.89 |
| Scottish | 87 | 0.67 |
| Portuguese | 85 | 0.65 |
| Swiss | 49 | 0.38 |
| Scotch Irish | 45 | 0.35 |
| Austrian | 24 | 0.18 |
| Lithuanian | 21 | 0.16 |
| Belgian | 20 | 0.15 |
| Scandinavian | 19 | 0.15 |
| Norwegian | 16 | 0.12 |
| British | 14 | 0.11 |
| Danish | 10 | 0.08 |
| French Canadian | 8 | 0.06 |
| Russian | 8 | 0.06 |
| Northern European | 6 | 0.05 |
| Welsh | 6 | 0.05 |
| Slovak | 4 | 0.03 |
| Croatian | 3 | 0.02 |
| Pennsylvania German | 3 | 0.02 |
| Czech | 2 | 0.02 |