O Fallon, IL ZIP Codes
O Fallon, Illinois has 1 ZIP code.
City Overview
| City | O Fallon |
|---|---|
| State | Illinois (IL) |
| County | St. Clair |
| ZIP Codes | 1 |
| Population (ZIP total) | 31,791 |
| Timezone | America/Chicago (UTC-5) |
ZIP Codes in O Fallon
| ZIP Code | County | Population |
|---|---|---|
| 62269 | St. Clair | 31,791 |
Population figures: US Census Bureau, 2012–2016 ACS 5-year estimates.
Map
Nearby Cities
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(4.5 km)
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Mascoutah, Illinois
(14.3 km)
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Frequently Asked Questions
O Fallon, Illinois has 1 ZIP code(s): 62269. Larger cities span multiple ZIP codes covering different neighborhoods.
O Fallon, IL has 1 ZIP code(s).