There are 19 zip codes in St. Louis city, Missouri. The most populated is 63116, located in Saint Louis. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
6311641,821Saint Louis
6311826,621Saint Louis
6310925,787Saint Louis
6313922,126Saint Louis
6310820,521Saint Louis
6311120,229Saint Louis
6310419,325Saint Louis
6311218,703Saint Louis
6311016,983Saint Louis
6311515,828Saint Louis
6311312,048Saint Louis
631079,391Saint Louis
631039,193Saint Louis
631068,676Saint Louis
631478,502Saint Louis
631206,818Saint Louis
631012,791Saint Louis
631022,404Saint Louis
631550Saint Louis

Zip Codes in St. Louis city, Missouri by Population (2024)