O Fallon, Missouri ZIP codes
What is the ZIP code for O Fallon, MO?
63366, 63368
2 for street addresses
O Fallon is in St. Charles County, Missouri. USPS uses 2 ZIP codes for O Fallon. About 101,735 people live in O Fallon ZIP codes; the most populated is 63366 with 54,769 residents. The city is in the Central Time zone and uses area code 636.
| City | O Fallon, MO |
|---|---|
| State | Missouri |
| County | St. Charles County |
| ZIP codes | 2 |
| Population (ZIP areas) | about 101,735 |
| Time zone | Central Time · now |
| Area code | 636 |
All O Fallon ZIP codes
| ZIP code | Type | Population | Median income |
|---|---|---|---|
| 63366 | Standard | 54,769 | $100,621 |
| 63368 | Standard | 46,966 | $124,297 |
Population and income: U.S. Census Bureau, American Community Survey 5-year estimates. PO Box and single-organization ZIP codes have no residents.
Other ZIP codes that accept “O Fallon”
These ZIP codes belong to a neighboring city, but USPS also accepts O Fallon as the city name in addresses.
Cities near O Fallon
- Lake Saint Louis, MO 2.7 mi
- Saint Peters, MO 6.1 mi
- Wentzville, MO 6.4 mi
- Saint Charles, MO 9.6 mi
- Defiance, MO 10.1 mi
- Old Monroe, MO 10.4 mi
- Foristell, MO 10.8 mi
- Golden Eagle, IL 12.1 mi
- Chesterfield, MO 13.4 mi
- Brussels, IL 13.7 mi
Questions
- What is the ZIP code for O Fallon, MO?
- O Fallon has 2 ZIP codes: 63366 and 63368. The right one depends on the street address.
- How many ZIP codes does O Fallon have?
- 2.
- Which O Fallon ZIP code has the most people?
- 63366, with about 54,769 residents, followed by 63368 (46,966).
- What county is O Fallon, MO in?
- O Fallon ZIP codes are in St. Charles County.
- What area code is O Fallon, MO?
- O Fallon uses area code 636.