South Dakota 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.
| County | Diversity Index | |
|---|---|---|
| 1. | Beadle County | 61.7 |
| 2. | Roberts County | 57.7 |
| 3. | Jackson County | 57.6 |
| 4. | Mellette County | 55.7 |
| 5. | Lyman County | 55.6 |
| 6. | Bennett County | 54.9 |
| 7. | Charles Mix County | 54.2 |
| 8. | Moody County | 46.4 |
| 9. | Corson County | 45.8 |
| 10. | Pennington County | 45.6 |
| 11. | Minnehaha County | 44.9 |
| 12. | Tripp County | 41.3 |
| 13. | Walworth County | 40.7 |
| 14. | Hughes County | 39.6 |
| 15. | Dewey County | 38.3 |
| 16. | Marshall County | 38.0 |
| 17. | Aurora County | 36.4 |
| 18. | Ziebach County | 35.9 |
| 19. | Buffalo County | 35.5 |
| 20. | Brule County | 35.0 |
