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. | Dallas County | 84.5 |
| 2. | Harris County | 83.4 |
| 3. | Fort Bend County | 81.3 |
| 4. | Waller County | 80.7 |
| 5. | Titus County | 78.9 |
| 6. | Jefferson County | 77.5 |
| 7. | Mitchell County | 77.3 |
| 8. | Potter County | 77.1 |
| 9. | Bell County | 77.0 |
| 10. | Castro County | 76.9 |
| 11. | Tarrant County | 76.8 |
| 12. | Karnes County | 76.5 |
| 13. | Brazoria County | 76.1 |
| 14. | Moore County | 76.1 |
| 15. | Cochran County | 75.6 |
| 16. | Hale County | 75.6 |
| 17. | Gonzales County | 75.5 |
| 18. | Matagorda County | 75.0 |
| 19. | Winkler County | 75.0 |
| 20. | Upton County | 74.9 |
