California Gazetteer
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. | San Mateo County | 38 |
| 2. | San Francisco County | 40 |
| 3. | Santa Cruz County | 41 |
| 4. | Santa Clara County | 42 |
| 5. | Alameda County | 42 |
| 6. | Los Angeles County | 42 |
| 7. | Marin County | 42 |
| 8. | Orange County | 47 |
| 9. | Humboldt County | 47 |
| 10. | San Luis Obispo County | 47 |
| 11. | Trinity County | 47 |
| 12. | Napa County | 48 |
| 13. | San Diego County | 48 |
| 14. | Mendocino County | 48 |
| 15. | Monterey County | 49 |
| 16. | Sonoma County | 51 |
| 17. | Ventura County | 52 |
| 18. | Nevada County | 53 |
| 19. | Santa Barbara County | 54 |
| 20. | Contra Costa County | 56 |
