Ranking of New Jersey Counties By Percentage of Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.50M people in New Jersey with Unclassified ancestry (16.26% of New Jersey population). Among all New Jersey counties, Salem County had the highest percentage of its population with Unclassified ancestry (22.88%), followed by Cumberland County (19.60%), and Gloucester County (18.97%).
The chart and table below shows the top 10 counties with high percentage of its population having Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in New Jersey.
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Related Topics: New Jersey ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of New Jersey Counties By Percentage of Population with Unclassified Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Salem County | 22.88 |
| 2 | Cumberland County | 19.60 |
| 3 | Gloucester County | 18.97 |
| 4 | Camden County | 18.61 |
| 5 | Burlington County | 18.28 |
| 6 | Ocean County | 17.86 |
| 7 | Sussex County | 17.48 |
| 8 | Somerset County | 17.11 |
| 9 | Atlantic County | 16.73 |
| 10 | Cape May County | 16.64 |
| 11 | Warren County | 16.56 |
| 12 | Monmouth County | 16.38 |
| 13 | Middlesex County | 16.10 |
| 14 | Essex County | 15.73 |
| 15 | Union County | 15.69 |
| 16 | Bergen County | 15.07 |
| 17 | Hunterdon County | 14.87 |
| 18 | Hudson County | 14.77 |
| 19 | Morris County | 14.66 |
| 20 | Passaic County | 14.62 |
| 21 | Mercer County | 14.46 |
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