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
City
Population
63116Saint Louis41,821
63118Saint Louis26,621
63109Saint Louis25,787
63139Saint Louis22,126
63108Saint Louis20,521
63111Saint Louis20,229
63104Saint Louis19,325
63112Saint Louis18,703
63110Saint Louis16,983
63115Saint Louis15,828
63113Saint Louis12,048
63107Saint Louis9,391
63103Saint Louis9,193
63106Saint Louis8,676
63147Saint Louis8,502
63120Saint Louis6,818
63101Saint Louis2,791
63102Saint Louis2,404
63155Saint Louis0

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