Monmouth 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 642.16K Monmouth County, NJ population, 150.96K had Italian ancestry (23.51%), 145.60K had Other Groups ancestry (22.67%), and 131.62K had Irish ancestry (20.50%).
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).
Monmouth County, NJ Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Italian | 150964 | 23.51 |
| Other Groups | 145597 | 22.67 |
| Irish | 131621 | 20.50 |
| Unclassified | 105157 | 16.38 |
| German | 75399 | 11.74 |
| Polish | 39270 | 6.12 |
| English | 38577 | 6.01 |
| American | 25389 | 3.95 |
| Russian | 16342 | 2.55 |
| West Indian (except Hispanic groups) | 8738 | 1.36 |
| Scottish | 8731 | 1.36 |
| French (except Basque) | 7820 | 1.22 |
| Hungarian | 7717 | 1.20 |
| Eastern European | 7650 | 1.19 |
| European | 6886 | 1.07 |
| Ukrainian | 6149 | 0.96 |
| Greek | 5550 | 0.86 |
| Dutch | 5262 | 0.82 |
| Portuguese | 4795 | 0.75 |
| Brazilian | 4349 | 0.68 |
| Swedish | 4233 | 0.66 |
| Haitian | 4197 | 0.65 |
| Egyptian | 4070 | 0.63 |
| Norwegian | 3860 | 0.60 |
| Subsaharan African | 3140 | 0.49 |
| Austrian | 2786 | 0.43 |
| Jamaican | 2744 | 0.43 |
| British | 2676 | 0.42 |
| Scotch Irish | 2663 | 0.42 |
| Slovak | 2560 | 0.40 |
| Syrian | 2495 | 0.39 |
| Lithuanian | 2484 | 0.39 |
| French Canadian | 2304 | 0.36 |
| Welsh | 2115 | 0.33 |
| Czech | 1867 | 0.29 |
| African | 1844 | 0.29 |
| Danish | 1734 | 0.27 |
| Romanian | 1730 | 0.27 |
| Turkish | 1369 | 0.21 |
| Swiss | 1189 | 0.19 |
| Albania | 1107 | 0.17 |
| Croatian | 1106 | 0.17 |
| Lebanese | 1103 | 0.17 |
| Armenian | 1089 | 0.17 |
| Czechoslovakian | 1029 | 0.16 |
| Scandinavian | 1007 | 0.16 |
| Canadian | 712 | 0.11 |
| Israeli | 675 | 0.11 |
| Trinidadian and Tobagonian | 653 | 0.10 |
| West Indian | 653 | 0.10 |
| Nigerian | 637 | 0.10 |
| Finnish | 554 | 0.09 |
| Belgian | 468 | 0.07 |
| Latvian | 442 | 0.07 |
| Northern European | 418 | 0.07 |
| British West Indian | 388 | 0.06 |
| Guyanese | 384 | 0.06 |
| Slavic | 314 | 0.05 |
| Yugoslavian | 299 | 0.05 |
| Iranian | 263 | 0.04 |
| Australian | 233 | 0.04 |
| Liberian | 233 | 0.04 |
| Moroccan | 221 | 0.03 |
| Bulgarian | 215 | 0.03 |
| Estonian | 203 | 0.03 |
| Slovene | 195 | 0.03 |
| Ghanaian | 194 | 0.03 |
| Icelander | 180 | 0.03 |
| Palestinian | 179 | 0.03 |
| Arab | 168 | 0.03 |
| Serbian | 159 | 0.03 |
| Maltese | 148 | 0.02 |
| Barbadian | 141 | 0.02 |
| Pennsylvania German | 139 | 0.02 |
| Macedonian | 129 | 0.02 |
| Belizean | 91 | 0.01 |
| US Virgin Islander | 85 | 0.01 |
| Iraqi | 78 | 0.01 |
| Cape Verdean | 63 | 0.01 |
| Basque | 61 | 0.01 |
| Celtic | 58 | 0.01 |
| South African | 57 | 0.01 |
| Jordanian | 45 | 0.01 |
| Cypriot | 43 | 0.01 |
| Assyrian/Chaldean/Syriac | 35 | 0.01 |
| New Zealander | 33 | 0.01 |
| Alsatian | 32 | 0.01 |
| Senegalese | 25 | 0.00 |
| Carpatho Rusyn | 22 | 0.00 |
| German Russian | 21 | 0.00 |
| Sierra Leonean | 17 | 0.00 |
| Afghan | 13 | 0.00 |
| Cajun | 7 | 0.00 |
| Dutch West Indian | 2 | 0.00 |