Iowa 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 Rickardsville | Dubuque | 2.0 |
| 2. | City of Marble Rock | Floyd | 2.4 |
| 3. | City of Delhi | Delaware | 2.8 |
| 4. | City of Mitchell | Mitchell | 2.9 |
| 5. | Leando Census Designated Place | Van Buren | 3.4 |
| 6. | City of Brayton | Audubon | 3.4 |
| 7. | City of Garden Grove | Decatur | 3.5 |
| 8. | City of Harpers Ferry | Allamakee | 3.5 |
| 9. | City of New Vienna | Dubuque | 4.2 |
| 10. | City of Elliott | Montgomery | 4.7 |
| 11. | City of Worthington | Dubuque | 4.7 |
| 12. | City of Clermont | Fayette | 4.9 |
| 13. | City of Panama | Shelby | 4.9 |
| 14. | City of Rose Hill | Mahaska | 5.0 |
| 15. | City of Shambaugh | Page | 5.0 |
| 16. | City of McIntire | Mitchell | 5.3 |
| 17. | City of Ryan | Delaware | 5.4 |
| 18. | City of Bridgewater | Adair | 5.7 |
| 19. | City of Frederika | Bremer | 5.8 |
| 20. | City of Waucoma | Fayette | 5.8 |
