About ZIP code 63303
The ZIP code 63303 routes mail to Saint Charles in the Missouri 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
63303 - Saint Charles
ZIP code 63303 is Saint Charles in Missouri, United States.
| ZIP code | 63303 |
| Place | Saint Charles |
| Region | Missouri |
| District | Saint Charles |
| Country | United States (US) |
| Coordinates | 38.7622, -90.5471 (map) |