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. | Modoc County | 161 |
| 2. | Kings County | 153 |
| 3. | Lassen County | 148 |
| 4. | Imperial County | 134 |
| 5. | Colusa County | 123 |
| 6. | Merced County | 122 |
| 7. | Sierra County | 122 |
| 8. | Tulare County | 121 |
| 9. | Kern County | 120 |
| 10. | Plumas County | 120 |
| 11. | Lake County | 119 |
| 12. | Siskiyou County | 118 |
| 13. | Madera County | 115 |
| 14. | Del Norte County | 113 |
| 15. | Glenn County | 112 |
| 16. | Solano County | 112 |
| 17. | Tehama County | 112 |
| 18. | Stanislaus County | 111 |
| 19. | Amador County | 111 |
| 20. | Calaveras County | 109 |
