Montgomery 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 28.48K Montgomery County, IL population, 9.54K had Unclassified ancestry (33.50%), 7.39K had German ancestry (25.94%), and 3.38K had Other Groups ancestry (11.85%).
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).
Montgomery County, IL Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Unclassified | 9542 | 33.50 |
| German | 7388 | 25.94 |
| Other Groups | 3376 | 11.85 |
| Irish | 3327 | 11.68 |
| English | 2942 | 10.33 |
| American | 2591 | 9.10 |
| Italian | 1455 | 5.11 |
| Polish | 467 | 1.64 |
| French (except Basque) | 444 | 1.56 |
| Scottish | 442 | 1.55 |
| Dutch | 439 | 1.54 |
| European | 393 | 1.38 |
| Scotch Irish | 354 | 1.24 |
| Welsh | 347 | 1.22 |
| Swedish | 336 | 1.18 |
| Serbian | 168 | 0.59 |
| Greek | 118 | 0.41 |
| Russian | 109 | 0.38 |
| Slovak | 104 | 0.37 |
| Czechoslovakian | 99 | 0.35 |
| British | 92 | 0.32 |
| Eastern European | 92 | 0.32 |
| Swiss | 78 | 0.27 |
| Hungarian | 76 | 0.27 |
| Norwegian | 71 | 0.25 |
| Czech | 68 | 0.24 |
| Austrian | 42 | 0.15 |
| Belgian | 40 | 0.14 |
| Lithuanian | 38 | 0.13 |
| Croatian | 32 | 0.11 |
| Portuguese | 29 | 0.10 |
| Finnish | 28 | 0.10 |
| French Canadian | 22 | 0.08 |
| Slavic | 20 | 0.07 |
| Slovene | 18 | 0.06 |
| Scandinavian | 15 | 0.05 |
| Ukrainian | 14 | 0.05 |
| Yugoslavian | 13 | 0.05 |
| Iranian | 7 | 0.03 |
| Subsaharan African | 4 | 0.01 |
| African | 4 | 0.01 |
| Romanian | 3 | 0.01 |
| Danish | 2 | 0.01 |
| Pennsylvania German | 2 | 0.01 |