Ranking of New Jersey Counties By Percentage of Population with Other Groups Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 3.50M people in New Jersey with Other Groups ancestry (37.94% of New Jersey population). Among all New Jersey counties, Hudson County had the highest percentage of its population with Other Groups ancestry (59.35%), followed by Passaic County (51.10%), and Middlesex County (48.65%).

The chart and table below shows the top 10 counties with high percentage of its population having Other Groups ancestry.

You can see similar information for other states and for other ancestry groups in New Jersey.

Data Source: US Census Bureau.
Ranking of New Jersey Counties By Percentage of Population with Other Groups Ancestry in 2021
Hudson County
Passaic County
Middlesex County
Essex County
Union County
Cumberland County
Mercer County
Bergen County
Somerset County
Atlantic County
Ranking of New Jersey Counties By Percentage of Population with Other Groups Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Hudson County 59.35
2 Passaic County 51.10
3 Middlesex County 48.65
4 Essex County 48.21
5 Union County 46.69
6 Cumberland County 45.69
7 Mercer County 42.56
8 Bergen County 39.55
9 Somerset County 38.34
10 Atlantic County 37.84
11 Camden County 35.99
12 Morris County 27.49
13 Burlington County 26.73
14 Salem County 23.12
15 Monmouth County 22.67
16 Gloucester County 19.84
17 Ocean County 19.75
18 Warren County 17.02
19 Hunterdon County 16.18
20 Cape May County 15.35
21 Sussex County 14.95