About ZIP code 91023
The ZIP code 91023 routes mail to Mount Wilson 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
91023 - Mount Wilson
ZIP code 91023 is Mount Wilson in California, United States.
| ZIP code | 91023 |
| Place | Mount Wilson |
| Region | California |
| District | Los Angeles |
| Country | United States (US) |
| Coordinates | 34.2264, -118.0662 (map) |