Ranking of New Jersey Counties By Population with American Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 304.14K people in New Jersey with American ancestry. Among all New Jersey counties, Ocean County had the highest population with American ancestry (39.73K), followed by Essex County (31.24K), and Monmouth County (25.39K).
The chart and table below shows the top 10 counties with high number of people with American 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 Population with American Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Ocean County | 39731 |
| 2 | Essex County | 31236 |
| 3 | Monmouth County | 25389 |
| 4 | Bergen County | 25295 |
| 5 | Middlesex County | 25226 |
| 6 | Union County | 23799 |
| 7 | Hudson County | 17305 |
| 8 | Morris County | 16164 |
| 9 | Camden County | 13946 |
| 10 | Burlington County | 13252 |
| 11 | Somerset County | 10538 |
| 12 | Passaic County | 10337 |
| 13 | Mercer County | 9533 |
| 14 | Gloucester County | 8357 |
| 15 | Atlantic County | 7817 |
| 16 | Sussex County | 7154 |
| 17 | Cumberland County | 5372 |
| 18 | Hunterdon County | 3974 |
| 19 | Warren County | 3860 |
| 20 | Cape May County | 3080 |
| 21 | Salem County | 2778 |
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