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 | Parish | Diversity Index | |
|---|---|---|---|
| 1. | Siracusaville Census Designated Place | St. Mary | 92.5 |
| 2. | Amelia Census Designated Place | St. Mary | 90.6 |
| 3. | Terrytown Census Designated Place | Jefferson | 77.5 |
| 4. | Village of Forest Hill | Rapides | 76.5 |
| 5. | City of Kenner | Jefferson | 75.7 |
| 6. | Harvey Census Designated Place | Jefferson | 75.3 |
| 7. | Town of New Llano | Vernon | 74.9 |
| 8. | Town of Basile | Evangeline | 72.6 |
| 9. | Timberlane Census Designated Place | Jefferson | 72.4 |
| 10. | Avondale Census Designated Place | Jefferson | 72.3 |
| 11. | Town of Zwolle | Sabine | 72.0 |
| 12. | City of Gretna | Jefferson | 71.8 |
| 13. | Fort Polk South Census Designated Place | Vernon | 71.6 |
| 14. | Town of Bernice | Union | 69.0 |
| 15. | Charenton Census Designated Place | St. Mary | 68.9 |
| 16. | Bridge City Census Designated Place | Jefferson | 68.3 |
| 17. | Dulac Census Designated Place | Terrebonne | 68.1 |
| 18. | Estelle Census Designated Place | Jefferson | 68.1 |
| 19. | City of Gonzales | Ascension | 67.4 |
| 20. | Triumph Census Designated Place | Plaquemines | 66.9 |
