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City · Missouri · United States

Saint Charles, MO — ZIP codes

4 ZIP codes · Saint Charles County

City
Saint Charles
County
Saint Charles
State
Missouri
Country
United States
Postal codes
63301633026330363304
Single source
Coordinates
38.8014, -90.5065 View on OpenStreetMap

ZIP codes (4)

Postal codePlace nameVerification
63301Saint CharlesSingle source
63302Saint CharlesSingle source
63303Saint CharlesSingle source
63304Saint CharlesSingle source

Sources and verification

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Last generated : 2026-08-21. Report an error.