| Post Office | El Cajon |
| Division | San Diego |
| Pincode | 92021 |
| Post Office | El Cajon |
| Division | San Diego |
| Pincode | 92020 |
| Post Office | El Cajon |
| Division | San Diego |
| Pincode | 92019 |
| Post Office | El Cajon |
| Division | San Diego |
| Pincode | 92022 |
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