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O Fallon, Missouri ZIP Code - United States

The location O Fallon, MO has 4 differents ZIP Codes. Check the map below to check your ZIP Code.

City Name ZIP Code ZIP Type Estimated Population
O Fallon, MO PRIMARY Status defition 63366 STANDARD 41.184
O Fallon, MO ACCEPTABLE Status defition 63367 STANDARD 16.536
O Fallon, MO PRIMARY Status defition 63368 STANDARD 35.097
O Fallon, MO ACCEPTABLE Status defition 63376 STANDARD 63.056

Postal Zone of O Fallon, MO - USA

O Fallon, Missouri ZIP Code - United States
ZIP Code Tabulation Areas (ZCTAs) for O Fallon, MO ZIP Code. A ZCTA is a generalized area representation of the american ZIP Code service area.

O Fallon, MO belongs to which county?

O Fallon, MO belongs to St. Charles county. Check the list of St. Charles county ZIP Code.

ZIP Code Missouri

Check the list of Missouri ZIP Code.

ZIP Code United States

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Status Definitions
  • PRIMARY: means an the primary city name. Official city name, although the city name might also have another acceptable name.
  • ACCEPTABLE: means an adequate city name. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.
  • IMPROPER/NOT ACCEPTABLE: Means an inadequate city name has been entered or received based on information entered.
  • UNIQUE: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and the US mail service cost-benefit analysis.