ZIP Code 63366 – O'Fallon, Missouri
The 63366 ZIP Code belongs to O'Fallon, Missouri. The population in this 63366 ZIP code is 54,449. The latitude is 38.85918 and longitude is -90.71964 in 63366 O'Fallon, Missouri. The time zone for this 63366 ZIP code is America/Chicago.
| City | O'Fallon |
| Zip Code | 63366 |
| State | Missouri |
| County | St. Charles |
| Population | 54,449 |
| Latitude | 38.85918 |
| Longitude | -90.71964 |
| Time Zone | America/Chicago |