Pennsylvania 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. | Jefferson County | 11.2 |
| 2. | Bedford County | 11.4 |
| 3. | Elk County | 11.6 |
| 4. | Armstrong County | 11.9 |
| 5. | Clarion County | 13.5 |
| 6. | Fulton County | 13.7 |
| 7. | Potter County | 13.9 |
| 8. | Warren County | 14.0 |
| 9. | Venango County | 15.1 |
| 10. | Somerset County | 15.5 |
| 11. | Tioga County | 15.7 |
| 12. | Mifflin County | 15.8 |
| 13. | Bradford County | 16.3 |
| 14. | Cameron County | 16.6 |
| 15. | Clinton County | 16.6 |
| 16. | Clearfield County | 16.7 |
| 17. | Perry County | 17.3 |
| 18. | Crawford County | 17.5 |
| 19. | Susquehanna County | 17.7 |
| 20. | Snyder County | 17.8 |
