Saint Charles zipcode
| City | Saint Charles |
| ZIP Code | 63304 |
| Type | Standard |
| State Code | MO |
| State | Missouri |
ZIP code of Saint Charles is 63304. This place is located in Missouri state in US. To send any postal service to Saint Charles, you must use 63304 zipcode.
The ZIP code 63304 is also used with 3 more city names of Missouri.
- Cottleville, MO
- Saint Peters, MO
- Weldon Spring, MO
You should avoid following 2 city names of Missouri to be used with the ZIP code 63304.
- St Peters, MO
- Weldon Spring Heights, MO