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. | Cape May County | 38.4 |
| 2. | Ocean County | 44.4 |
| 3. | Hunterdon County | 45.5 |
| 4. | Sussex County | 47.9 |
| 5. | Gloucester County | 52.7 |
| 6. | Warren County | 55.6 |
| 7. | Monmouth County | 57.3 |
| 8. | Salem County | 59.1 |
| 9. | Burlington County | 63.9 |
| 10. | Morris County | 65.1 |
| 11. | Atlantic County | 75.6 |
| 12. | Camden County | 76.0 |
| 13. | Somerset County | 77.2 |
| 14. | Bergen County | 77.6 |
| 15. | Mercer County | 82.7 |
| 16. | Middlesex County | 83.3 |
| 17. | Essex County | 83.4 |
| 18. | Cumberland County | 83.7 |
| 19. | Passaic County | 86.0 |
| 20. | Union County | 86.2 |
