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 Arcadia | Trempealeau | 78.8 |
| 2. | Village of West Milwaukee | Milwaukee | 78.0 |
| 3. | City of Milwaukee | Milwaukee | 77.2 |
| 4. | City of Racine | Racine | 75.4 |
| 5. | Bluffview Census Designated Place | Sauk | 73.2 |
| 6. | City of Beloit | Rock | 69.1 |
| 7. | City of Fitchburg | Dane | 65.1 |
| 8. | City of Delavan | Walworth | 63.7 |
| 9. | Village of Brown Deer | Milwaukee | 62.8 |
| 10. | City of Green Bay | Brown | 61.7 |
| 11. | City of Kenosha | Kenosha | 60.8 |
| 12. | Cornucopia Census Designated Place | Bayfield | 59.5 |
| 13. | Birch Hill Census Designated Place | Ashland | 58.6 |
| 14. | City of Abbotsford | Clark | 58.6 |
| 15. | Franks Field Census Designated Place | Ashland | 58.6 |
| 16. | New Odanah Census Designated Place | Ashland | 58.4 |
| 17. | Village of Bowler | Shawano | 57.7 |
| 18. | Middle Village Census Designated Place | Menominee | 57.2 |
| 19. | New Post Census Designated Place | Sawyer | 56.3 |
| 20. | Lake Ivanhoe Census Designated Place | Walworth | 54.9 |
