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.
| Name | County | Diversity Index | |
|---|---|---|---|
| 1. | City of Blue Island | Cook | 87.6 |
| 2. | City of Aurora | Kane | 87.4 |
| 3. | Village of Hanover Park | DuPage | 87.4 |
| 4. | City of Waukegan | Lake | 87.4 |
| 5. | City of Zion | Lake | 87.3 |
| 6. | Village of Beach Park | Lake | 87.2 |
| 7. | City of North Chicago | Lake | 87.0 |
| 8. | Village of South Chicago Heights | Cook | 87.0 |
| 9. | Village of Berkeley | Cook | 86.9 |
| 10. | Village of Glendale Heights | DuPage | 86.3 |
| 11. | Campbell's Island Census Designated Place | Rock Island | 86.2 |
| 12. | Village of Bolingbrook | Will | 86.0 |
| 13. | Village of Hillside | Cook | 86.0 |
| 14. | Village of Posen | Cook | 86.0 |
| 15. | Village of Carpentersville | Kane | 85.9 |
| 16. | City of Elgin | Kane | 85.8 |
| 17. | City of Chicago | Cook | 85.7 |
| 18. | City of West Chicago | DuPage | 85.6 |
| 19. | Fairmont Census Designated Place | Will | 85.5 |
| 20. | City of Park City | Lake | 85.4 |
