Middlesex County, NJ Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 858.77K Middlesex County, NJ population, 417.81K had Other Groups ancestry (48.65%), 138.26K had Unclassified ancestry (16.10%), and 95.86K had Italian ancestry (11.16%).
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 New Jersey counties, and for New Jersey.
Data Source: US Census - ACS 5-Year Estimates (2021).
Middlesex County, NJ Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Other Groups | 417808 | 48.65 |
| Unclassified | 138263 | 16.10 |
| Italian | 95857 | 11.16 |
| Irish | 72832 | 8.48 |
| German | 49061 | 5.71 |
| Polish | 45961 | 5.35 |
| American | 25226 | 2.94 |
| English | 18865 | 2.20 |
| Russian | 14814 | 1.73 |
| Hungarian | 14425 | 1.68 |
| West Indian (except Hispanic groups) | 14055 | 1.64 |
| Subsaharan African | 11214 | 1.31 |
| Egyptian | 10483 | 1.22 |
| Portuguese | 8886 | 1.03 |
| Ukrainian | 7602 | 0.89 |
| Jamaican | 6096 | 0.71 |
| French (except Basque) | 6035 | 0.70 |
| Eastern European | 6028 | 0.70 |
| Greek | 5777 | 0.67 |
| European | 5411 | 0.63 |
| Scottish | 4989 | 0.58 |
| African | 4490 | 0.52 |
| Slovak | 4180 | 0.49 |
| Nigerian | 3482 | 0.41 |
| Haitian | 2967 | 0.35 |
| Dutch | 2619 | 0.31 |
| Swedish | 2603 | 0.30 |
| Norwegian | 2469 | 0.29 |
| Guyanese | 2424 | 0.28 |
| Austrian | 2412 | 0.28 |
| Brazilian | 2186 | 0.26 |
| West Indian | 2070 | 0.24 |
| Danish | 1994 | 0.23 |
| Lithuanian | 1948 | 0.23 |
| Ghanaian | 1787 | 0.21 |
| Scotch Irish | 1726 | 0.20 |
| Czech | 1701 | 0.20 |
| Romanian | 1542 | 0.18 |
| British | 1533 | 0.18 |
| Lebanese | 1502 | 0.18 |
| Trinidadian and Tobagonian | 1428 | 0.17 |
| Welsh | 1385 | 0.16 |
| Turkish | 1293 | 0.15 |
| French Canadian | 1242 | 0.14 |
| Swiss | 850 | 0.10 |
| British West Indian | 843 | 0.10 |
| Arab | 774 | 0.09 |
| Belgian | 751 | 0.09 |
| Armenian | 721 | 0.08 |
| Albania | 704 | 0.08 |
| Macedonian | 687 | 0.08 |
| Iranian | 656 | 0.08 |
| Jordanian | 643 | 0.08 |
| Czechoslovakian | 615 | 0.07 |
| Palestinian | 614 | 0.07 |
| Moroccan | 611 | 0.07 |
| Canadian | 601 | 0.07 |
| Slavic | 576 | 0.07 |
| Scandinavian | 474 | 0.06 |
| Barbadian | 466 | 0.05 |
| Israeli | 410 | 0.05 |
| Syrian | 402 | 0.05 |
| Kenyan | 385 | 0.05 |
| Croatian | 378 | 0.04 |
| Serbian | 373 | 0.04 |
| Afghan | 350 | 0.04 |
| Northern European | 339 | 0.04 |
| Finnish | 302 | 0.04 |
| US Virgin Islander | 299 | 0.04 |
| South African | 239 | 0.03 |
| Iraqi | 230 | 0.03 |
| Bulgarian | 222 | 0.03 |
| Ethiopian | 190 | 0.02 |
| Yugoslavian | 169 | 0.02 |
| Latvian | 168 | 0.02 |
| Sierra Leonean | 145 | 0.02 |
| Pennsylvania German | 121 | 0.01 |
| Maltese | 117 | 0.01 |
| Basque | 104 | 0.01 |
| Estonian | 92 | 0.01 |
| Slovene | 80 | 0.01 |
| Liberian | 76 | 0.01 |
| Australian | 72 | 0.01 |
| Carpatho Rusyn | 59 | 0.01 |
| Belizean | 51 | 0.01 |
| Assyrian/Chaldean/Syriac | 41 | 0.01 |
| Bahamian | 41 | 0.01 |
| Dutch West Indian | 37 | 0.00 |
| German Russian | 30 | 0.00 |
| Icelander | 24 | 0.00 |
| Sudanese | 24 | 0.00 |
| Ugandan | 21 | 0.00 |
| New Zealander | 18 | 0.00 |
| Soviet Union | 16 | 0.00 |
| Cape Verdean | 16 | 0.00 |
| Bermudan | 16 | 0.00 |
| Celtic | 15 | 0.00 |
| Cypriot | 12 | 0.00 |
| Alsatian | 10 | 0.00 |
| Cajun | 6 | 0.00 |
| Luxembourger | 6 | 0.00 |
| Zimbabwean | 5 | 0.00 |