California Demographics Site Map

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Browse California Counties & Cities Alphabetically

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Browse California Zip Codes

• Zip Codes by Population

Largest 10 Counties by Population

1. Los Angeles County
2. San Diego County
3. Orange County
4. Riverside County
5. San Bernardino County
6. Santa Clara County
7. Alameda County
8. Sacramento County
9. Contra Costa County
10. Fresno County

Largest 10 Cities by Population

1. Los Angeles
2. San Diego
3. San Jose
4. San Francisco
5. Fresno
6. Sacramento
7. Long Beach
8. Oakland
9. Bakersfield
10. Anaheim

Largest 10 Zip Codes by Population

1. 90011
2. 90650
3. 94565
4. 92336
5. 91331
6. 90044
7. 92335
8. 90805
9. 90250
10. 90201

20 Richest Counties in California

1. San Mateo County
2. Marin County
3. Santa Clara County
4. San Francisco County
5. Contra Costa County
6. Alpine County
7. Alameda County
8. Orange County
9. Napa County
10. Santa Cruz County
11. Placer County
12. El Dorado County
13. Ventura County
14. Sonoma County
15. Santa Barbara County
16. San Benito County
17. San Diego County
18. Monterey County
19. Solano County
20. San Luis Obispo County

20 Richest Cities in California

1. Atherton
2. Hillsborough
3. Rolling Hills city
4. Portola Valley
5. Los Altos Hills
6. Shell Ridge
7. Woodside
8. Belvedere
9. West Menlo Park
10. Emerald Lake Hills
11. Ross
12. Hidden Hills
13. Monte Sereno
14. Sleepy Hollow
15. Norris Canyon
16. Piedmont
17. Los Altos
18. Diablo
19. Loyola
20. Glen Ellen