New Jersey Gazetteer
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.
| County | Diversity Index | |
|---|---|---|
| 1. | Hudson County | 88.5 |
| 2. | Union County | 86.1 |
| 3. | Passaic County | 85.9 |
| 4. | Cumberland County | 83.5 |
| 5. | Essex County | 83.2 |
| 6. | Middlesex County | 83.0 |
| 7. | Mercer County | 82.5 |
| 8. | Bergen County | 77.1 |
| 9. | Somerset County | 76.8 |
| 10. | Camden County | 75.8 |
| 11. | Atlantic County | 75.5 |
| 12. | Morris County | 64.5 |
| 13. | Burlington County | 63.2 |
| 14. | Salem County | 58.0 |
| 15. | Monmouth County | 57.5 |
| 16. | Warren County | 53.9 |
| 17. | Gloucester County | 51.7 |
| 18. | Sussex County | 46.4 |
| 19. | Hunterdon County | 44.5 |
| 20. | Ocean County | 44.5 |
