Mercer 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 384.95K Mercer County, NJ population, 163.84K had Other Groups ancestry (42.56%), 55.65K had Unclassified ancestry (14.46%), and 43.71K had Italian ancestry (11.35%).
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).
Mercer County, NJ Population By Ancestry in 2021
Items per page:
0 of 0
| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Other Groups | 163841 | 42.56 |
| Unclassified | 55650 | 14.46 |
| Italian | 43709 | 11.35 |
| Irish | 41227 | 10.71 |
| German | 34878 | 9.06 |
| English | 22934 | 5.96 |
| Polish | 21679 | 5.63 |
| American | 9533 | 2.48 |
| West Indian (except Hispanic groups) | 8351 | 2.17 |
| Subsaharan African | 7787 | 2.02 |
| Russian | 6287 | 1.63 |
| Hungarian | 5494 | 1.43 |
| French (except Basque) | 5034 | 1.31 |
| Haitian | 4527 | 1.18 |
| Scottish | 3624 | 0.94 |
| Dutch | 3441 | 0.89 |
| African | 3218 | 0.84 |
| European | 2885 | 0.75 |
| Jamaican | 2709 | 0.70 |
| Liberian | 2687 | 0.70 |
| Eastern European | 2424 | 0.63 |
| Ukrainian | 2401 | 0.62 |
| Swedish | 2053 | 0.53 |
| Slovak | 1761 | 0.46 |
| Greek | 1591 | 0.41 |
| Welsh | 1505 | 0.39 |
| British | 1499 | 0.39 |
| Norwegian | 1387 | 0.36 |
| Lithuanian | 1283 | 0.33 |
| Scotch Irish | 1176 | 0.31 |
| Turkish | 1106 | 0.29 |
| Danish | 1053 | 0.27 |
| Romanian | 1023 | 0.27 |
| Austrian | 988 | 0.26 |
| Czech | 970 | 0.25 |
| Ghanaian | 919 | 0.24 |
| Egyptian | 913 | 0.24 |
| Canadian | 900 | 0.23 |
| Portuguese | 800 | 0.21 |
| Brazilian | 658 | 0.17 |
| French Canadian | 644 | 0.17 |
| Nigerian | 541 | 0.14 |
| Lebanese | 540 | 0.14 |
| Trinidadian and Tobagonian | 501 | 0.13 |
| Moroccan | 494 | 0.13 |
| Swiss | 466 | 0.12 |
| Guyanese | 453 | 0.12 |
| Palestinian | 427 | 0.11 |
| Israeli | 424 | 0.11 |
| Pennsylvania German | 409 | 0.11 |
| Scandinavian | 358 | 0.09 |
| West Indian | 353 | 0.09 |
| Belgian | 342 | 0.09 |
| Armenian | 320 | 0.08 |
| Czechoslovakian | 271 | 0.07 |
| Iranian | 267 | 0.07 |
| Kenyan | 264 | 0.07 |
| Slavic | 239 | 0.06 |
| Yugoslavian | 217 | 0.06 |
| Latvian | 215 | 0.06 |
| Northern European | 212 | 0.06 |
| Bulgarian | 211 | 0.06 |
| Croatian | 187 | 0.05 |
| US Virgin Islander | 166 | 0.04 |
| Australian | 164 | 0.04 |
| Slovene | 161 | 0.04 |
| South African | 161 | 0.04 |
| Arab | 149 | 0.04 |
| British West Indian | 138 | 0.04 |
| Serbian | 126 | 0.03 |
| Belizean | 117 | 0.03 |
| Macedonian | 107 | 0.03 |
| Albania | 88 | 0.02 |
| Iraqi | 87 | 0.02 |
| Syrian | 86 | 0.02 |
| Barbadian | 63 | 0.02 |
| Finnish | 61 | 0.02 |
| Celtic | 59 | 0.02 |
| Estonian | 59 | 0.02 |
| Sudanese | 59 | 0.02 |
| Afghan | 46 | 0.01 |
| Jordanian | 42 | 0.01 |
| Ethiopian | 39 | 0.01 |
| Maltese | 37 | 0.01 |
| Sierra Leonean | 37 | 0.01 |
| Carpatho Rusyn | 34 | 0.01 |
| New Zealander | 27 | 0.01 |
| Senegalese | 25 | 0.01 |
| Basque | 23 | 0.01 |
| Alsatian | 17 | 0.00 |
| Bahamian | 13 | 0.00 |
| Icelander | 11 | 0.00 |
| Somali | 10 | 0.00 |
| Bermudan | 4 | 0.00 |
| Ugandan | 2 | 0.00 |