Illinois 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. | Jasper County | 8.8 |
| 2. | Edwards County | 9.4 |
| 3. | Scott County | 9.5 |
| 4. | Shelby County | 9.6 |
| 5. | Greene County | 10.1 |
| 6. | Cumberland County | 11.1 |
| 7. | Wayne County | 11.2 |
| 8. | Clark County | 11.8 |
| 9. | Edgar County | 12.0 |
| 10. | Hamilton County | 12.1 |
| 11. | Gallatin County | 12.1 |
| 12. | Calhoun County | 12.3 |
| 13. | Moultrie County | 12.4 |
| 14. | Henderson County | 12.7 |
| 15. | Mason County | 12.8 |
| 16. | Washington County | 13.7 |
| 17. | Pike County | 13.8 |
| 18. | Hancock County | 14.0 |
| 19. | White County | 14.2 |
| 20. | Piatt County | 14.4 |
