header> Open Interactive Map

ZIP Code 62299

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
37.5800, -105.9200
Timezone
America/Chicago
Est. Population
131,000
Country
United States (US)
View 62299 on Interactive Map → All ZIP Codes in O'Fallon