The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
| County | Housing Affordability Index | |
|---|---|---|
| 1. | McKean County | 189 |
| 2. | Cameron County | 160 |
| 3. | Venango County | 148 |
| 4. | Clearfield County | 142 |
| 5. | Warren County | 140 |
| 6. | Elk County | 137 |
| 7. | Forest County | 135 |
| 8. | Jefferson County | 131 |
| 9. | Cambria County | 128 |
| 10. | Greene County | 127 |
| 11. | Lawrence County | 127 |
| 12. | Somerset County | 126 |
| 13. | Clarion County | 126 |
| 14. | Potter County | 124 |
| 15. | Schuylkill County | 123 |
| 16. | Mifflin County | 123 |
| 17. | Crawford County | 123 |
| 18. | Armstrong County | 120 |
| 19. | Fayette County | 115 |
| 20. | Mercer County | 115 |