New York 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. | Queens County | 87.2 |
| 2. | Bronx County | 86.8 |
| 3. | Kings County | 82.5 |
| 4. | New York County | 81.3 |
| 5. | Westchester County | 80.5 |
| 6. | Orange County | 75.1 |
| 7. | Nassau County | 74.9 |
| 8. | Richmond County | 74.8 |
| 9. | Rockland County | 71.8 |
| 10. | Suffolk County | 70.8 |
| 11. | Sullivan County | 64.9 |
| 12. | Dutchess County | 63.7 |
| 13. | Putnam County | 61.3 |
| 14. | Schenectady County | 60.9 |
| 15. | Monroe County | 59.9 |
| 16. | Albany County | 58.5 |
| 17. | Erie County | 53.1 |
| 18. | Ulster County | 52.7 |
| 19. | Montgomery County | 52.1 |
| 20. | Tompkins County | 51.7 |
