Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in Saint Louis County Address Data
Businesses Addresses: 37,786
PO Box Addresses: 5,830
Residential Addresses: 475,105
Multi-Family Addresses: 75,978
Single Family Addresses: 397,996
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Map of Saint Louis County, MO ZIP Codes With Actual (Default) City Names