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ZIP Code 62309

O'Fallon, St. Clair County, Illinois (IL) • Standard Postal Code

IL
City
O'Fallon
County
St. Clair County
State / Territory
Illinois
Area Code
(224)
Coordinates
37.7800, -105.7200
Timezone
America/Chicago
Est. Population
166,000
Country
United States (US)
View 62309 on Interactive Map → All ZIP Codes in O'Fallon