Connecticut Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 3.61M Connecticut population, 1.01M had Other Groups ancestry (27.93%), 596.88K had Unclassified ancestry (16.56%), and 584.13K had Italian ancestry (16.20%).
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 states, Connecticut counties, congressional districts, and the United States.
NB: People could belong to one or more ancestry groups.
Related Topics: Connecticut ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates (2021).
Connecticut Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Other Groups | 1006912 | 27.93 |
| Unclassified | 596879 | 16.56 |
| Italian | 584128 | 16.20 |
| Irish | 528983 | 14.67 |
| English | 306527 | 8.50 |
| German | 296788 | 8.23 |
| Polish | 240390 | 6.67 |
| French (except Basque) | 157233 | 4.36 |
| American | 132323 | 3.67 |
| West Indian (except Hispanic groups) | 93395 | 2.59 |
| French Canadian | 85189 | 2.36 |
| Jamaican | 59682 | 1.66 |
| Scottish | 54921 | 1.52 |
| Russian | 49404 | 1.37 |
| Swedish | 48410 | 1.34 |
| Portuguese | 46482 | 1.29 |
| Subsaharan African | 37591 | 1.04 |
| European | 36644 | 1.02 |
| Hungarian | 31631 | 0.88 |
| Greek | 28959 | 0.80 |
| Lithuanian | 26099 | 0.72 |
| Dutch | 23609 | 0.66 |
| Brazilian | 22856 | 0.63 |
| Eastern European | 20509 | 0.57 |
| Ukrainian | 20303 | 0.56 |
| Haitian | 19843 | 0.55 |
| British | 19472 | 0.54 |
| Norwegian | 17342 | 0.48 |
| Slovak | 17295 | 0.48 |
| Scotch Irish | 17282 | 0.48 |
| African | 16840 | 0.47 |
| Canadian | 13909 | 0.39 |
| Welsh | 12995 | 0.36 |
| Albania | 12563 | 0.35 |
| Austrian | 12377 | 0.34 |
| Danish | 10176 | 0.28 |
| Czech | 10147 | 0.28 |
| Lebanese | 9234 | 0.26 |
| Swiss | 8044 | 0.22 |
| Romanian | 6777 | 0.19 |
| Scandinavian | 6362 | 0.18 |
| West Indian | 6224 | 0.17 |
| Ghanaian | 5451 | 0.15 |
| Finnish | 4979 | 0.14 |
| Armenian | 4971 | 0.14 |
| Yugoslavian | 4457 | 0.12 |
| Czechoslovakian | 4426 | 0.12 |
| Guyanese | 4019 | 0.11 |
| Northern European | 3978 | 0.11 |
| Trinidadian and Tobagonian | 3909 | 0.11 |
| Cape Verdean | 3646 | 0.10 |
| Nigerian | 3621 | 0.10 |
| Croatian | 3501 | 0.10 |
| Turkish | 3130 | 0.09 |
| Egyptian | 2784 | 0.08 |
| Iranian | 2663 | 0.07 |
| Moroccan | 2448 | 0.07 |
| British West Indian | 2448 | 0.07 |
| Syrian | 2445 | 0.07 |
| Belgian | 2293 | 0.06 |
| Arab | 2115 | 0.06 |
| Israeli | 1952 | 0.05 |
| Latvian | 1757 | 0.05 |
| Afghan | 1743 | 0.05 |
| Barbadian | 1734 | 0.05 |
| Slavic | 1563 | 0.04 |
| Serbian | 1377 | 0.04 |
| Australian | 1208 | 0.03 |
| Slovene | 1199 | 0.03 |
| Estonian | 1179 | 0.03 |
| Palestinian | 1108 | 0.03 |
| Ethiopian | 1008 | 0.03 |
| Bulgarian | 960 | 0.03 |
| South African | 896 | 0.03 |
| Macedonian | 695 | 0.02 |
| Pennsylvania German | 639 | 0.02 |
| Senegalese | 584 | 0.02 |
| Jordanian | 562 | 0.02 |
| Belizean | 528 | 0.02 |
| Liberian | 504 | 0.01 |
| Celtic | 499 | 0.01 |
| Sudanese | 497 | 0.01 |
| Icelander | 417 | 0.01 |
| Kenyan | 392 | 0.01 |
| Bahamian | 357 | 0.01 |
| Assyrian/Chaldean/Syriac | 351 | 0.01 |
| Iraqi | 342 | 0.01 |
| Ugandan | 322 | 0.01 |
| US Virgin Islander | 317 | 0.01 |
| Basque | 299 | 0.01 |
| Somali | 285 | 0.01 |
| Carpatho Rusyn | 213 | 0.01 |
| Cajun | 209 | 0.01 |
| New Zealander | 203 | 0.01 |
| Alsatian | 194 | 0.01 |
| Maltese | 170 | 0.01 |
| Dutch West Indian | 155 | 0.00 |
| Cypriot | 153 | 0.00 |
| Bermudan | 107 | 0.00 |
| Sierra Leonean | 99 | 0.00 |
| Luxembourger | 68 | 0.00 |
| German Russian | 62 | 0.00 |
| Soviet Union | 31 | 0.00 |
| Zimbabwean | 15 | 0.00 |