Somerset 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 343.95K Somerset County, NJ population, 131.87K had Other Groups ancestry (38.34%), 58.85K had Unclassified ancestry (17.11%), and 46.06K had Italian ancestry (13.39%).
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).
Somerset County, NJ Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Other Groups | 131872 | 38.34 |
| Unclassified | 58847 | 17.11 |
| Italian | 46056 | 13.39 |
| Irish | 39726 | 11.55 |
| German | 31214 | 9.07 |
| Polish | 22019 | 6.40 |
| English | 16626 | 4.83 |
| American | 10538 | 3.06 |
| Russian | 7091 | 2.06 |
| West Indian (except Hispanic groups) | 4999 | 1.45 |
| Hungarian | 4687 | 1.36 |
| French (except Basque) | 4171 | 1.21 |
| Scottish | 3813 | 1.11 |
| Dutch | 3274 | 0.95 |
| Subsaharan African | 3139 | 0.91 |
| Ukrainian | 3102 | 0.90 |
| Portuguese | 3067 | 0.89 |
| European | 2970 | 0.86 |
| Eastern European | 2643 | 0.77 |
| Norwegian | 2455 | 0.71 |
| Jamaican | 2378 | 0.69 |
| Slovak | 2352 | 0.68 |
| Swedish | 2327 | 0.68 |
| Egyptian | 2021 | 0.59 |
| Greek | 1825 | 0.53 |
| British | 1737 | 0.51 |
| African | 1506 | 0.44 |
| Haitian | 1372 | 0.40 |
| Lithuanian | 1358 | 0.40 |
| Austrian | 1299 | 0.38 |
| Czech | 1299 | 0.38 |
| Swiss | 1065 | 0.31 |
| Welsh | 994 | 0.29 |
| Scotch Irish | 884 | 0.26 |
| French Canadian | 852 | 0.25 |
| Romanian | 813 | 0.24 |
| Czechoslovakian | 733 | 0.21 |
| Brazilian | 666 | 0.19 |
| Lebanese | 637 | 0.19 |
| Danish | 630 | 0.18 |
| Iranian | 567 | 0.17 |
| Canadian | 557 | 0.16 |
| Turkish | 506 | 0.15 |
| Guyanese | 498 | 0.14 |
| Palestinian | 492 | 0.14 |
| Trinidadian and Tobagonian | 446 | 0.13 |
| Ghanaian | 404 | 0.12 |
| British West Indian | 393 | 0.11 |
| Albania | 337 | 0.10 |
| Armenian | 336 | 0.10 |
| Syrian | 334 | 0.10 |
| Croatian | 308 | 0.09 |
| Northern European | 298 | 0.09 |
| Sierra Leonean | 283 | 0.08 |
| Latvian | 270 | 0.08 |
| West Indian | 241 | 0.07 |
| Scandinavian | 219 | 0.06 |
| Slavic | 214 | 0.06 |
| Belgian | 205 | 0.06 |
| US Virgin Islander | 198 | 0.06 |
| Israeli | 174 | 0.05 |
| Afghan | 166 | 0.05 |
| Nigerian | 152 | 0.04 |
| Kenyan | 148 | 0.04 |
| Finnish | 141 | 0.04 |
| Bulgarian | 137 | 0.04 |
| Maltese | 131 | 0.04 |
| Serbian | 131 | 0.04 |
| South African | 125 | 0.04 |
| Barbadian | 125 | 0.04 |
| Yugoslavian | 125 | 0.04 |
| Slovene | 112 | 0.03 |
| Estonian | 105 | 0.03 |
| Sudanese | 103 | 0.03 |
| Carpatho Rusyn | 101 | 0.03 |
| Pennsylvania German | 89 | 0.03 |
| Iraqi | 76 | 0.02 |
| New Zealander | 72 | 0.02 |
| Macedonian | 67 | 0.02 |
| Bahamian | 65 | 0.02 |
| Arab | 52 | 0.02 |
| Assyrian/Chaldean/Syriac | 52 | 0.02 |
| Ethiopian | 48 | 0.01 |
| Alsatian | 45 | 0.01 |
| Moroccan | 43 | 0.01 |
| Bermudan | 39 | 0.01 |
| Australian | 36 | 0.01 |
| Jordanian | 32 | 0.01 |
| Cypriot | 27 | 0.01 |
| German Russian | 23 | 0.01 |
| Basque | 21 | 0.01 |
| Belizean | 20 | 0.01 |
| Zimbabwean | 14 | 0.00 |
| Celtic | 11 | 0.00 |
| Luxembourger | 4 | 0.00 |