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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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St. Louis city ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in St. Louis city.

County State ZIP Code City Area Codes
St. Louis city MO 63112 Saint Louis 314, 557
St. Louis city MO 63113 Saint Louis 314, 557
St. Louis city MO 63115 Saint Louis 314, 557
St. Louis city MO 63116 Saint Louis 314, 557
St. Louis city MO 63118 Saint Louis 314, 557, 618
St. Louis city MO 63120 Saint Louis 314, 557
St. Louis city MO 63139 Saint Louis 314, 557
St. Louis city MO 63147 Saint Louis 314, 557, 618
St. Louis City MO 63150 Saint Louis 314
St. Louis City MO 63151 Saint Louis 314
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.