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. | Village of Livingston | Grant | 1.2 |
| 2. | Cable Census Designated Place | Bayfield | 3.0 |
| 3. | Village of Fenwood | Marathon | 3.9 |
| 4. | Pine River Census Designated Place | Waushara | 3.9 |
| 5. | Arkansaw Census Designated Place | Pepin | 4.2 |
| 6. | Village of Soldiers Grove | Crawford | 4.4 |
| 7. | Kieler Census Designated Place | Grant | 4.5 |
| 8. | Lake Arrowhead Census Designated Place | Adams | 4.7 |
| 9. | Village of Potosi | Grant | 4.8 |
| 10. | Village of Mount Sterling | Crawford | 5.2 |
| 11. | Village of Ferryville | Crawford | 5.2 |
| 12. | Village of Cassville | Grant | 5.4 |
| 13. | Village of Kellnersville | Manitowoc | 5.4 |
| 14. | Village of La Valle | Sauk | 5.5 |
| 15. | Mercer Census Designated Place | Iron | 5.5 |
| 16. | Village of Neosho | Dodge | 5.6 |
| 17. | Village of Ridgeland | Dunn | 5.6 |
| 18. | Winchester Census Designated Place | Winnebago | 5.6 |
| 19. | Village of Lynxville | Crawford | 5.9 |
| 20. | Village of Hollandale | Iowa | 5.9 |
