The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
| Name | County | Diversity Index | |
|---|---|---|---|
| 1. | Borough of Woodlynne | Camden | 91.7 |
| 2. | City of Bridgeton | Cumberland | 90.8 |
| 3. | City of New Brunswick | Middlesex | 89.8 |
| 4. | City of Paterson | Passaic | 89.3 |
| 5. | City of Camden | Camden | 88.9 |
| 6. | East Franklin Census Designated Place | Somerset | 88.5 |
| 7. | City of Pleasantville | Atlantic | 88.1 |
| 8. | City of Passaic | Passaic | 88.0 |
| 9. | Borough of Wrightstown | Burlington | 87.6 |
| 10. | Silver Lake Census Designated Place | Essex | 87.5 |
| 11. | City of Atlantic City | Atlantic | 87.5 |
| 12. | City of Hackensack | Bergen | 87.4 |
| 13. | City of Jersey City | Hudson | 86.7 |
| 14. | Borough of Prospect Park | Passaic | 86.5 |
| 15. | City of Plainfield | Union | 86.2 |
| 16. | Borough of Carteret | Middlesex | 86.0 |
| 17. | Borough of North Plainfield | Somerset | 85.5 |
| 18. | Borough of Penns Grove | Salem | 84.6 |
| 19. | Borough of Bogota | Bergen | 84.5 |
| 20. | Borough of Bergenfield | Bergen | 84.0 |
