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. | Scott County | 9.8 |
| 3. | Shelby County | 10.0 |
| 4. | Greene County | 10.1 |
| 5. | Edwards County | 10.8 |
| 6. | Cumberland County | 11.5 |
| 7. | Hamilton County | 12.3 |
| 8. | Clark County | 12.8 |
| 9. | Edgar County | 12.8 |
| 10. | Moultrie County | 13.2 |
| 11. | Wayne County | 13.2 |
| 12. | Calhoun County | 13.6 |
| 13. | Mason County | 13.8 |
| 14. | Gallatin County | 13.8 |
| 15. | Henderson County | 13.9 |
| 16. | Washington County | 14.4 |
| 17. | Menard County | 14.6 |
| 18. | Richland County | 14.8 |
| 19. | Hancock County | 15.1 |
| 20. | Pike County | 15.2 |
