North 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. | Mountrail County | 64.7 |
| 2. | McKenzie County | 57.8 |
| 3. | Benson County | 55.8 |
| 4. | Williams County | 50.5 |
| 5. | Walsh County | 44.2 |
| 6. | Dunn County | 44.2 |
| 7. | Ward County | 43.2 |
| 8. | Rolette County | 40.9 |
| 9. | Grand Forks County | 39.5 |
| 10. | Cass County | 39.4 |
| 11. | Ramsey County | 38.8 |
| 12. | Stark County | 37.2 |
| 13. | Sioux County | 33.5 |
| 14. | Morton County | 32.2 |
| 15. | Burleigh County | 31.9 |
| 16. | Pembina County | 29.7 |
| 17. | McLean County | 29.5 |
| 18. | Eddy County | 27.6 |
| 19. | Richland County | 25.8 |
| 20. | Towner County | 24.3 |
