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 Allardt | Fentress | 2.3 |
| 2. | Fincastle Census Designated Place | Campbell | 4.1 |
| 3. | Fall Branch Census Designated Place | Washington | 4.8 |
| 4. | Flat Top Mountain Census Designated Place | Hamilton | 5.2 |
| 5. | City of Coalmont | Grundy | 5.2 |
| 6. | Mooresburg Census Designated Place | Hawkins | 5.2 |
| 7. | Lone Oak Census Designated Place | Sequatchie | 5.5 |
| 8. | Andersonville Census Designated Place | Anderson | 5.5 |
| 9. | City of Gruetli-Laager | Grundy | 5.6 |
| 10. | Town of Powells Crossroads | Marion | 5.6 |
| 11. | Petros Census Designated Place | Morgan | 5.7 |
| 12. | Town of Palmer | Grundy | 5.7 |
| 13. | Mowbray Mountain Census Designated Place | Hamilton | 5.7 |
| 14. | Coalfield Census Designated Place | Morgan | 5.8 |
| 15. | Town of Samburg | Obion | 5.8 |
| 16. | Town of Hornbeak | Obion | 6.1 |
| 17. | Robbins Census Designated Place | Scott | 6.2 |
| 18. | Hunter Census Designated Place | Carter | 6.3 |
| 19. | Elgin Census Designated Place | Scott | 6.4 |
| 20. | City of Belle Meade | Davidson | 6.4 |
