De Witt 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 15.65K De Witt County, IL population, 5.46K had Unclassified ancestry (34.86%), 3.01K had German ancestry (19.24%), and 1.92K had Irish ancestry (12.25%).
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.
De Witt County, IL Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| Unclassified | 5456 | 34.86 |
| German | 3011 | 19.24 |
| Irish | 1917 | 12.25 |
| English | 1809 | 11.56 |
| Other Groups | 1748 | 11.17 |
| American | 1498 | 9.57 |
| Italian | 428 | 2.73 |
| Polish | 426 | 2.72 |
| European | 415 | 2.65 |
| Scotch Irish | 253 | 1.62 |
| Scottish | 229 | 1.46 |
| Swedish | 190 | 1.21 |
| French (except Basque) | 188 | 1.20 |
| Dutch | 184 | 1.18 |
| Norwegian | 144 | 0.92 |
| British | 112 | 0.72 |
| Canadian | 84 | 0.54 |
| Welsh | 57 | 0.36 |
| Hungarian | 54 | 0.35 |
| Scandinavian | 30 | 0.19 |
| Danish | 29 | 0.19 |
| Swiss | 25 | 0.16 |
| Belgian | 22 | 0.14 |
| Russian | 21 | 0.13 |
| Ukrainian | 21 | 0.13 |
| Austrian | 19 | 0.12 |
| Portuguese | 19 | 0.12 |
| Greek | 14 | 0.09 |
| Pennsylvania German | 14 | 0.09 |
| Albania | 13 | 0.08 |
| Slovene | 13 | 0.08 |
| Egyptian | 11 | 0.07 |
| Northern European | 10 | 0.06 |
| West Indian (except Hispanic groups) | 10 | 0.06 |
| Czech | 8 | 0.05 |
| Jamaican | 7 | 0.05 |
| Eastern European | 6 | 0.04 |
| Subsaharan African | 5 | 0.03 |
| African | 5 | 0.03 |
| Celtic | 3 | 0.02 |
| West Indian | 3 | 0.02 |
| Lithuanian | 2 | 0.01 |
| Slavic | 1 | 0.01 |