O Fallon, IL ZIP Codes
1
Total ZIPs
31,348
Total Population
ZIP Codes in O Fallon, IL
| ZIP Code | Population | Density | Timezone |
|---|---|---|---|
| 62269 | 31,348 | 448 | America/Chicago |
All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.