Zip Codes in Castro Valley, California
| Zip Code | Population | Zip Code | Population | Zip Code | Population | Zip Code | Population |
|---|---|---|---|---|---|---|---|
| 41,220 | 13,496 | 6,668 | 4 | ||||
| 0 |
| Zip Code | Population |
|---|---|
| 41,220 | |
| 13,496 | |
| 6,668 | |
| 4 | |
| 0 |
© 2026
| Zip Code | Population | Zip Code | Population | Zip Code | Population | Zip Code | Population |
|---|---|---|---|---|---|---|---|
| 41,220 | 13,496 | 6,668 | 4 | ||||
| 0 |
| Zip Code | Population |
|---|---|
| 41,220 | |
| 13,496 | |
| 6,668 | |
| 4 | |
| 0 |