Texas 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. | Starr County | 14.9 |
| 2. | Zapata County | 21.4 |
| 3. | Clay County | 25.1 |
| 4. | Maverick County | 25.6 |
| 5. | Archer County | 28.4 |
| 6. | Hardin County | 29.5 |
| 7. | Sabine County | 30.0 |
| 8. | Webb County | 30.1 |
| 9. | Carson County | 30.5 |
| 10. | Armstrong County | 30.6 |
| 11. | Llano County | 31.2 |
| 12. | Callahan County | 32.1 |
| 13. | Zavala County | 32.6 |
| 14. | Roberts County | 33.2 |
| 15. | Brooks County | 33.2 |
| 16. | Montague County | 33.4 |
| 17. | Hidalgo County | 34.1 |
| 18. | Shackelford County | 34.2 |
| 19. | Rains County | 34.8 |
| 20. | Jim Hogg County | 34.8 |
