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. | Punta Rassa Census Designated Place | Lee | 3.8 |
| 2. | Pelican Bay Census Designated Place | Collier | 6.1 |
| 3. | Matlacha Census Designated Place | Lee | 6.4 |
| 4. | Town of Beverly Beach | Flagler | 6.5 |
| 5. | Town of Indian River Shores | Indian River | 6.8 |
| 6. | Town of Longboat Key | Manatee | 7.0 |
| 7. | Franklin Park Census Designated Place | Broward | 7.3 |
| 8. | Burnt Store Marina Census Designated Place | Lee | 7.4 |
| 9. | Windsor Census Designated Place | Indian River | 7.9 |
| 10. | Town of Orchid | Indian River | 8.1 |
| 11. | Grove City Census Designated Place | Charlotte | 8.1 |
| 12. | Wabasso Beach Census Designated Place | Indian River | 8.4 |
| 13. | Town of Horseshoe Beach | Dixie | 9.0 |
| 14. | Manasota Key Census Designated Place | Charlotte | 9.0 |
| 15. | Munson Census Designated Place | Santa Rosa | 9.1 |
| 16. | Hutchinson Island South Census Designated Place | St. Lucie | 9.2 |
| 17. | Plantation Census Designated Place | Sarasota | 9.3 |
| 18. | City of Cedar Key | Levy | 9.6 |
| 19. | South Beach Census Designated Place | Indian River | 9.7 |
| 20. | Steinhatchee Census Designated Place | Taylor | 9.9 |
