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. | Chuichu Census Designated Place | Pinal | 87.5 |
| 2. | City of Avondale | Maricopa | 86.9 |
| 3. | Stanfield Census Designated Place | Pinal | 86.7 |
| 4. | Town of Parker | La Paz | 86.4 |
| 5. | City of Eloy | Pinal | 85.2 |
| 6. | City of El Mirage | Maricopa | 84.9 |
| 7. | Town of Gila Bend | Maricopa | 84.7 |
| 8. | City of Phoenix | Maricopa | 84.4 |
| 9. | Kleindale Census Designated Place | Pima | 84.3 |
| 10. | Town of Guadalupe | Maricopa | 84.1 |
| 11. | City of Glendale | Maricopa | 83.9 |
| 12. | City of Coolidge | Pinal | 83.9 |
| 13. | Valencia West Census Designated Place | Pima | 83.8 |
| 14. | City of South Tucson | Pima | 82.9 |
| 15. | City of Yuma | Yuma | 82.9 |
| 16. | City of Winslow | Navajo | 82.8 |
| 17. | Drexel Heights Census Designated Place | Pima | 82.7 |
| 18. | City of Tucson | Pima | 82.4 |
| 19. | Tusayan Census Designated Place (historical) | Coconino | 82.0 |
| 20. | City of Casa Grande | Pinal | 81.8 |