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. | City of Allen | Floyd | 2.1 |
| 2. | City of Raywick | Marion | 2.4 |
| 3. | City of Fairview | Kenton | 4.0 |
| 4. | Pathfork Census Designated Place | Harlan | 4.3 |
| 5. | Ezel Census Designated Place | Morgan | 4.4 |
| 6. | Freeburn Census Designated Place | Pike | 4.9 |
| 7. | City of Campton | Wolfe | 5.0 |
| 8. | McDowell Census Designated Place | Floyd | 5.0 |
| 9. | City of Olive Hill | Carter | 5.2 |
| 10. | City of Warfield | Martin | 5.2 |
| 11. | Blackey Census Designated Place | Letcher | 5.2 |
| 12. | City of Sandy Hook | Elliott | 5.7 |
| 13. | City of Salt Lick | Bath | 5.9 |
| 14. | Auxier Census Designated Place | Floyd | 6.3 |
| 15. | City of Elkhorn City | Pike | 6.3 |
| 16. | City of Fleming-Neon | Letcher | 6.3 |
| 17. | City of Livingston | Rockcastle | 6.5 |
| 18. | Hazel Green Census Designated Place | Wolfe | 6.6 |
| 19. | Flat Lick Census Designated Place | Knox | 6.7 |
| 20. | Payne Gap Census Designated Place | Letcher | 6.7 |