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 Wilder | Canyon | 88.2 |
| 2. | City of Aberdeen | Bingham | 81.8 |
| 3. | City of American Falls | Power | 79.8 |
| 4. | City of Homedale | Owyhee | 79.3 |
| 5. | City of Notus | Canyon | 77.5 |
| 6. | City of Dubois | Clark | 76.7 |
| 7. | City of Marsing | Owyhee | 75.5 |
| 8. | City of Hazelton | Jerome | 75.5 |
| 9. | City of Wendell | Gooding | 73.2 |
| 10. | City of Rupert | Minidoka | 72.3 |
| 11. | City of Jerome | Jerome | 71.3 |
| 12. | City of Mud Lake | Jefferson | 71.2 |
| 13. | City of Burley | Cassia | 70.6 |
| 14. | City of Heyburn | Minidoka | 69.9 |
| 15. | City of Shoshone | Lincoln | 69.6 |
| 16. | City of Caldwell | Canyon | 68.9 |
| 17. | City of Paul | Minidoka | 68.7 |
| 18. | City of Bellevue | Blaine | 68.4 |
| 19. | City of Parma | Canyon | 68.4 |
| 20. | City of Buhl | Twin Falls | 66.4 |
