California Gazetteer
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.
| County | Diversity Index | |
|---|---|---|
| 1. | Los Angeles County | 88.4 |
| 2. | San Joaquin County | 88.4 |
| 3. | San Bernardino County | 87.5 |
| 4. | Fresno County | 87.1 |
| 5. | Riverside County | 86.5 |
| 6. | Solano County | 86.5 |
| 7. | Kern County | 85.5 |
| 8. | Merced County | 85.4 |
| 9. | Kings County | 85.2 |
| 10. | Monterey County | 85.1 |
| 11. | Orange County | 84.8 |
| 12. | Alameda County | 84.7 |
| 13. | Stanislaus County | 84.7 |
| 14. | Contra Costa County | 84.6 |
| 15. | Madera County | 84.3 |
| 16. | San Diego County | 83.7 |
| 17. | Sutter County | 83.7 |
| 18. | Santa Barbara County | 83.7 |
| 19. | Ventura County | 83.6 |
| 20. | Yolo County | 83.4 |
