California Gazetteer
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
| Name | County | Wealth Index | |
|---|---|---|---|
| 1. | City of Rolling Hills | Los Angeles | 395 |
| 2. | City of Hidden Hills | Los Angeles | 387 |
| 3. | Town of Atherton | San Mateo | 380 |
| 4. | Bell Canyon Census Designated Place | Ventura | 373 |
| 5. | Town of Hillsborough | San Mateo | 373 |
| 6. | Town of Los Altos Hills | Santa Clara | 373 |
| 7. | Glen Ellen Census Designated Place | Sonoma | 371 |
| 8. | North Gate Census Designated Place | Contra Costa | 369 |
| 9. | Alamo Census Designated Place | Contra Costa | 364 |
| 10. | Castle Hill Census Designated Place | Contra Costa | 363 |
| 11. | City of Piedmont | Alameda | 360 |
| 12. | Town of Portola Valley | San Mateo | 356 |
| 13. | Loyola Census Designated Place | Santa Clara | 354 |
| 14. | Fairbanks Ranch Census Designated Place | San Diego | 353 |
| 15. | Rancho Santa Fe Census Designated Place | San Diego | 351 |
| 16. | Town of Woodside | San Mateo | 350 |
| 17. | City of Monte Sereno | Santa Clara | 349 |
| 18. | Lake Sherwood Census Designated Place | Ventura | 349 |
| 19. | Emerald Lake Hills Census Designated Place | San Mateo | 347 |
| 20. | City of Belvedere | Marin | 342 |
