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ZIP Code 62301

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
37.6200, -105.8800
Timezone
America/Chicago
Est. Population
138,000
Country
United States (US)
View 62301 on Interactive Map → All ZIP Codes in O'Fallon