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 West Milwaukee | Milwaukee | 84.1 |
| 2. | City of Arcadia | Trempealeau | 81.1 |
| 3. | City of Milwaukee | Milwaukee | 80.7 |
| 4. | City of Racine | Racine | 79.4 |
| 5. | City of Beloit | Rock | 73.8 |
| 6. | Mission Census Designated Place | Jackson | 70.8 |
| 7. | Lake Ivanhoe Census Designated Place | Walworth | 70.6 |
| 8. | City of Abbotsford | Clark | 70.1 |
| 9. | City of Delavan | Walworth | 70.1 |
| 10. | City of Green Bay | Brown | 69.8 |
| 11. | Village of Brown Deer | Milwaukee | 69.7 |
| 12. | City of Fitchburg | Dane | 68.9 |
| 13. | City of Kenosha | Kenosha | 68.5 |
| 14. | Sand Pillow Census Designated Place | Jackson | 68.3 |
| 15. | Village of Lake Delton | Sauk | 66.6 |
| 16. | Village of Bowler | Shawano | 64.7 |
| 17. | City of West Allis | Milwaukee | 63.8 |
| 18. | Village of Plainfield | Waushara | 63.6 |
| 19. | Bluffview Census Designated Place | Sauk | 62.9 |
| 20. | City of Colby | Clark | 61.6 |