About ZIP code 91001
The ZIP code 91001 routes mail to Altadena in the California region of United States. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
United States ยท ZIP code
91001 - Altadena
ZIP code 91001 is Altadena in California, United States.
| ZIP code | 91001 |
| Place | Altadena |
| Region | California |
| District | Los Angeles |
| Country | United States (US) |
| Coordinates | 34.1912, -118.1392 (map) |