Massachusetts Population By Ancestry in 2021 (ACS-5Yrs)
Updated on April 15, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 6.99M Massachusetts population, 1.65M had Other Groups ancestry (23.58%), 1.35M had Irish ancestry (19.24%), and 1.30M had Unclassified ancestry (18.52%).
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: Massachusetts ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Massachusetts Population By Ancestry in 2021
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| Ancestry | Population | Percent of Population (%) |
|---|---|---|
| Other Groups | 1648735 | 23.58 |
| Irish | 1345219 | 19.24 |
| Unclassified | 1294862 | 18.52 |
| Italian | 815794 | 11.67 |
| English | 655283 | 9.37 |
| German | 387135 | 5.54 |
| French (except Basque) | 375415 | 5.37 |
| Polish | 283050 | 4.05 |
| Portuguese | 270183 | 3.86 |
| American | 260364 | 3.72 |
| French Canadian | 235524 | 3.37 |
| Subsaharan African | 158921 | 2.27 |
| West Indian (except Hispanic groups) | 139627 | 2.00 |
| Scottish | 134503 | 1.92 |
| Swedish | 102031 | 1.46 |
| Russian | 91511 | 1.31 |
| European | 85838 | 1.23 |
| Brazilian | 84214 | 1.20 |
| Haitian | 81050 | 1.16 |
| Greek | 76566 | 1.10 |
| Cape Verdean | 70962 | 1.01 |
| Lithuanian | 43215 | 0.62 |
| Canadian | 42113 | 0.60 |
| Scotch Irish | 41714 | 0.60 |
| Eastern European | 39738 | 0.57 |
| Norwegian | 35032 | 0.50 |
| British | 34855 | 0.50 |
| Dutch | 34354 | 0.49 |
| Jamaican | 34171 | 0.49 |
| African | 33640 | 0.48 |
| Lebanese | 31027 | 0.44 |
| Armenian | 27280 | 0.39 |
| Ukrainian | 24760 | 0.35 |
| Welsh | 23388 | 0.34 |
| Finnish | 22885 | 0.33 |
| Albania | 19953 | 0.28 |
| Hungarian | 19068 | 0.27 |
| Nigerian | 14864 | 0.21 |
| Danish | 14346 | 0.21 |
| Austrian | 14308 | 0.21 |
| Czech | 12119 | 0.17 |
| Scandinavian | 11699 | 0.17 |
| Northern European | 10170 | 0.14 |
| Swiss | 10126 | 0.14 |
| Iranian | 9287 | 0.13 |
| Ghanaian | 9021 | 0.13 |
| Romanian | 8679 | 0.12 |
| Trinidadian and Tobagonian | 7803 | 0.11 |
| Moroccan | 7765 | 0.11 |
| Turkish | 7490 | 0.11 |
| Slovak | 7069 | 0.10 |
| West Indian | 7049 | 0.10 |
| Syrian | 6593 | 0.09 |
| Barbadian | 6112 | 0.09 |
| Egyptian | 5994 | 0.09 |
| Ethiopian | 5878 | 0.08 |
| Belgian | 5790 | 0.08 |
| Kenyan | 5746 | 0.08 |
| Arab | 5426 | 0.08 |
| British West Indian | 4540 | 0.07 |
| Ugandan | 4281 | 0.06 |
| Israeli | 4251 | 0.06 |
| Croatian | 4147 | 0.06 |
| Latvian | 4106 | 0.06 |
| Bulgarian | 3857 | 0.06 |
| Iraqi | 3553 | 0.05 |
| Serbian | 3532 | 0.05 |
| Liberian | 2974 | 0.04 |
| Czechoslovakian | 2928 | 0.04 |
| Yugoslavian | 2635 | 0.04 |
| Somali | 2388 | 0.03 |
| Australian | 2246 | 0.03 |
| Slovene | 2193 | 0.03 |
| Palestinian | 2148 | 0.03 |
| Guyanese | 2113 | 0.03 |
| Slavic | 2008 | 0.03 |
| South African | 1692 | 0.02 |
| Celtic | 1446 | 0.02 |
| Jordanian | 1179 | 0.02 |
| Estonian | 1057 | 0.02 |
| Icelander | 871 | 0.01 |
| Bahamian | 862 | 0.01 |
| Afghan | 852 | 0.01 |
| Cajun | 764 | 0.01 |
| New Zealander | 760 | 0.01 |
| Sierra Leonean | 712 | 0.01 |
| Sudanese | 701 | 0.01 |
| US Virgin Islander | 692 | 0.01 |
| Pennsylvania German | 661 | 0.01 |
| Macedonian | 612 | 0.01 |
| Basque | 598 | 0.01 |
| Assyrian/Chaldean/Syriac | 577 | 0.01 |
| Bermudan | 435 | 0.01 |
| Maltese | 409 | 0.01 |
| Belizean | 319 | 0.01 |
| Alsatian | 272 | 0.004 |
| Senegalese | 264 | 0.004 |
| Cypriot | 259 | 0.004 |
| Zimbabwean | 253 | 0.004 |
| Luxembourger | 248 | 0.004 |
| Carpatho Rusyn | 107 | 0.002 |
| Dutch West Indian | 77 | 0.001 |
| Soviet Union | 65 | 0.001 |
| German Russian | 59 | 0.001 |
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