City
O Fallon, MO ZIP codes
2 ZIPs, including 63366, 63368 as primary city.
Map of O Fallon
ZIP code map
ZIP share of this city
Population share
No overlap percents for this place — ZIP codes are listed from the city or county field.
ZIP codes in O Fallon
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 63366 | O Fallon | St. Charles County | 54,449 | $98,237 |
| 63368 | O Fallon | St. Charles County | 45,862 | $118,811 |