St. Louis County, MO Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 1.00M St. Louis County, MO population, 302.09K had Other Groups ancestry (30.15%), 231.10K had German ancestry (23.07%), and 204.64K had Unclassified ancestry (20.42%).
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 Missouri counties, and for Missouri.
Data Source: US Census - ACS 5-Year Estimates (2021).
St. Louis County, MO Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Other Groups | 302086 | 30.15 |
| German | 231103 | 23.07 |
| Unclassified | 204637 | 20.42 |
| Irish | 127329 | 12.71 |
| English | 83851 | 8.37 |
| Italian | 47531 | 4.74 |
| American | 44696 | 4.46 |
| French (except Basque) | 27306 | 2.73 |
| Polish | 23577 | 2.35 |
| European | 18073 | 1.80 |
| Scottish | 13747 | 1.37 |
| Subsaharan African | 12524 | 1.25 |
| Russian | 9221 | 0.92 |
| Yugoslavian | 9093 | 0.91 |
| Dutch | 8860 | 0.88 |
| Scotch Irish | 7740 | 0.77 |
| Swedish | 7188 | 0.72 |
| Norwegian | 5898 | 0.59 |
| African | 5710 | 0.57 |
| British | 5685 | 0.57 |
| Welsh | 5556 | 0.56 |
| Czech | 5284 | 0.53 |
| Eastern European | 4786 | 0.48 |
| Greek | 4645 | 0.46 |
| Swiss | 4114 | 0.41 |
| Hungarian | 3925 | 0.39 |
| Austrian | 3322 | 0.33 |
| Croatian | 2836 | 0.28 |
| Scandinavian | 2340 | 0.23 |
| Danish | 2223 | 0.22 |
| French Canadian | 2065 | 0.21 |
| Kenyan | 1904 | 0.19 |
| Ukrainian | 1881 | 0.19 |
| Northern European | 1837 | 0.18 |
| Nigerian | 1796 | 0.18 |
| Lebanese | 1770 | 0.18 |
| West Indian (except Hispanic groups) | 1734 | 0.17 |
| Lithuanian | 1711 | 0.17 |
| Slovak | 1649 | 0.17 |
| Romanian | 1369 | 0.14 |
| Albania | 1222 | 0.12 |
| Canadian | 1152 | 0.12 |
| Czechoslovakian | 1072 | 0.11 |
| Turkish | 966 | 0.10 |
| Belgian | 954 | 0.10 |
| Jamaican | 865 | 0.09 |
| Arab | 852 | 0.09 |
| Portuguese | 825 | 0.08 |
| Palestinian | 794 | 0.08 |
| Finnish | 754 | 0.08 |
| Armenian | 734 | 0.07 |
| Serbian | 716 | 0.07 |
| Syrian | 697 | 0.07 |
| Iranian | 648 | 0.07 |
| Ethiopian | 640 | 0.06 |
| Brazilian | 625 | 0.06 |
| Bulgarian | 614 | 0.06 |
| Egyptian | 515 | 0.05 |
| Ghanaian | 472 | 0.05 |
| Slovene | 443 | 0.04 |
| Liberian | 430 | 0.04 |
| Slavic | 407 | 0.04 |
| Israeli | 406 | 0.04 |
| Moroccan | 379 | 0.04 |
| Haitian | 362 | 0.04 |
| Iraqi | 341 | 0.03 |
| Australian | 325 | 0.03 |
| Afghan | 305 | 0.03 |
| Somali | 271 | 0.03 |
| Latvian | 246 | 0.03 |
| Jordanian | 205 | 0.02 |
| West Indian | 203 | 0.02 |
| Sudanese | 193 | 0.02 |
| South African | 173 | 0.02 |
| Macedonian | 148 | 0.02 |
| Luxembourger | 117 | 0.01 |
| Pennsylvania German | 107 | 0.01 |
| Senegalese | 102 | 0.01 |
| Belizean | 99 | 0.01 |
| Trinidadian and Tobagonian | 88 | 0.01 |
| Alsatian | 79 | 0.01 |
| Maltese | 75 | 0.01 |
| Ugandan | 68 | 0.01 |
| Cape Verdean | 61 | 0.01 |
| Cajun | 60 | 0.01 |
| Icelander | 53 | 0.01 |
| Barbadian | 50 | 0.01 |
| British West Indian | 50 | 0.01 |
| German Russian | 45 | 0.00 |
| Celtic | 40 | 0.00 |
| Bahamian | 34 | 0.00 |
| Basque | 31 | 0.00 |
| Guyanese | 22 | 0.00 |
| Sierra Leonean | 19 | 0.00 |
| Bermudan | 18 | 0.00 |
| New Zealander | 11 | 0.00 |
| US Virgin Islander | 11 | 0.00 |
| Assyrian/Chaldean/Syriac | 9 | 0.00 |
| Dutch West Indian | 3 | 0.00 |
| Carpatho Rusyn | 2 | 0.00 |
| Estonian | 2 | 0.00 |