Iowa Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 3.18M Iowa population, 1.01M had German ancestry (31.82%), 796.79K had Unclassified ancestry (25.06%), and 511.26K had Other Groups ancestry (16.08%).
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 states.
NB: People could belong to one or more ancestry groups.
Related Topics: Iowa ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Iowa Population By Ancestry in 2021
Ancestry | Population | Percent of Population (%) |
|---|---|---|
| German | 1,011,533 | 31.82 |
| Unclassified | 796,790 | 25.06 |
| Other Groups | 511,263 | 16.08 |
| Irish | 407,893 | 12.83 |
| English | 275,822 | 8.68 |
| Norwegian | 144,589 | 4.55 |
| American | 140,160 | 4.41 |
| Dutch | 114,546 | 3.60 |
| Swedish | 75,855 | 2.39 |
| Italian | 61,134 | 1.92 |
| French (except Basque) | 55,375 | 1.74 |
| European | 50,958 | 1.60 |
| Czech | 49,618 | 1.56 |
| Danish | 48,987 | 1.54 |
| Scottish | 45,406 | 1.43 |
| Polish | 38,951 | 1.23 |
| Subsaharan African | 35,409 | 1.11 |
| Scotch Irish | 21,929 | 0.69 |
| Welsh | 19,652 | 0.62 |
| Scandinavian | 15,780 | 0.50 |
| British | 15,539 | 0.49 |
| Swiss | 15,187 | 0.48 |
| African | 14,671 | 0.46 |
| Russian | 8,480 | 0.27 |
| Yugoslavian | 7,687 | 0.24 |
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