El Cajon zipcode
| City | El Cajon |
| ZIP Code | 92021 |
| Type | Standard |
| State Code | CA |
| State | California |
ZIP code of El Cajon is 92021. This place is located in California state in US. To send any postal service to El Cajon, you must use 92021 zipcode.
You should avoid following 2 city names of California to be used with the ZIP code 92021.
- Bostonia, CA
- Crest, CA