O Fallon, IL ZIP codes

1 ZIP code that list O Fallon as a USPS primary or acceptable city. Not a Census place.

Population of associated ZIP codes

35,536

Sum of ZCTA populations for ZIP codes intersecting O Fallon. Not a Census place total. Methodology

Combined population of ZIP/ZCTAs that list this USPS city as a primary or acceptable name. This is a labeled ZIP-sum, never a Census place ACS population. Methodology

Map of O Fallon, IL

Associated Census ZCTAs for USPS city O Fallon, IL — Associated ZIP Code Tabulation Areas for O Fallon, IL (USPS city, not a Census place). Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP codes associated with O Fallon

ZIP	City	County	Population	Income
62269	O Fallon	St. Clair County	35,536	$100,167