ZIP Code 63303
Saint Charles · Saint Charles, Missouri
63303 is the ZIP code of Saint Charles in Saint Charles, Missouri, United States.
- ZIP Code
- 63303
- County
- Saint Charles
- State
- Missouri
- Country
- United States
Place with ZIP code 63303
| Place | County | Location |
|---|---|---|
| Saint Charles | Saint Charles | 38.762, -90.547 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 63303?
Saint Charles.
Which county and state is 63303 in?
Saint Charles, Missouri, United States.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.