California ZIP Codes: Ranges, Prefixes and Major Cities
California uses 2,588 active ZIP codes, running from 90001 to 96162. This guide shows how those codes are grouped, which ones serve the state's largest cities and how to format them correctly.
ZIP code range and prefixes
Every California ZIP code starts with one of 60 three-digit prefixes. Each prefix points to a sectional center facility, the processing plant that sorts mail for a group of nearby post offices.
- 900
- 901
- 902
- 903
- 904
- 905
- 906
- 907
- 908
- 910
- 911
- 912
- 913
- 914
- 915
- 916
- 917
- 918
- 919
- 920
- 921
- 922
- 923
- 924
- 925
- 926
- 927
- 928
- 930
- 931
- 932
- 933
- 934
- 935
- 936
- 937
- 938
- 939
- 940
- 941
- 942
- 943
- 944
- 945
- 946
- 947
- 948
- 949
- 950
- 951
- 952
- 953
- 954
- 955
- 956
- 957
- 958
- 959
- 960
- 961
Types of ZIP codes in California
| Type | Count | What it covers |
|---|---|---|
| Standard | 1,583 | Street delivery areas |
| PO Box | 809 | Post office boxes only |
| Unique | 196 | A single high-volume organization |
ZIP codes for major California cities
| City | County | Standard ZIPs | Range |
|---|---|---|---|
| Los Angeles | Los Angeles County | 63 | 90001–90134 |
| San Diego | San Diego County | 31 | 92101–92199 |
| San Francisco | San Francisco County | 31 | 94102–94188 |
| San Jose | Santa Clara County | 30 | 95101–95148 |
| Sacramento | Sacramento County | 29 | 95811–95864 |
| Fresno | Fresno County | 19 | 93650–93737 |
| Oakland | Alameda County | 15 | 94601–94621 |
| Long Beach | Los Angeles County | 14 | 90802–90833 |
| Bakersfield | Kern County | 11 | 93301–93314 |
| Stockton | San Joaquin County | 11 | 95202–95219 |
| Anaheim | Orange County | 9 | 92801–92899 |
| Glendale | Los Angeles County | 9 | 91201–91210 |
| Irvine | Orange County | 9 | 92602–92620 |
| Berkeley | Alameda County | 8 | 94702–94710 |
| San Bernardino | San Bernardino County | 8 | 92401–92411 |
Sacramento is the state capital. Larger cities have many ZIP codes because each code follows mail delivery routes, not city limits.
Sample addresses
William Garcia
5331 Valley Ln
San Bernardino, CA 92404
John White
205 Maple Ct
Berkeley, CA 94710
Wei Martinez
761 Hickory Ave
Oakland, CA 94610
These examples use real city and ZIP pairs with invented street lines, so they are safe for testing and documentation.
Tips for working with these ZIP codes
- Store ZIP codes as text, not numbers, so the format stays consistent across states with leading zeros.
- All of California is in the Pacific time zone, which keeps scheduling logic simple.
- A quick sanity check: a valid CA ZIP code begins with one of the prefixes listed above.
- City names in addresses are post office names. A suburb may share a ZIP code and city name with a nearby larger town.
Create realistic California addresses for testing, with real cities, counties and ZIP codes.
Generate California addresses