This is the O Fallon ZIP Code page. O Fallon is a city name in O Fallon, Illinois, United States. The city name is designated by USPS, it could be a city, town,village school name, etc.
| post code | city | state | latitude | longitude |
|---|---|---|---|---|
| 63366 | O Fallon | IL | 38.815938 | -90.694113 |