ZIP Code 63303 – Saint Charles, Missouri | ZipsCode.us
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ZIP Code 63303
Saint Charles, Missouri · Saint Charles
ZIP code 63303 belongs to the city of Saint Charles in Missouri (Saint Charles). See all Missouri ZIP Codes.
ZIP code 63303 belongs to Saint Charles, Missouri, in Saint Charles. If you are mailing a letter or package to this area, use Saint Charles, MO 63303 in the address. On this page you will find the city and county for 63303, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 63303?
The city for ZIP code 63303 is Saint Charles, Missouri. When you write an address in this area, the correct format is: Name, Street Address, Saint Charles, MO 63303.
ZIP Code 63303 County and State
ZIP code 63303 is located in Saint Charles, Missouri. For a complete list of cities and ZIP codes across the state, see the Missouri ZIP Codes page.
Nearby ZIP Codes in Saint Charles
These ZIP codes are in the same county as 63303:
ZIP Code 63303 on the Map
The map below shows the approximate center of ZIP code 63303, near Saint Charles, Missouri. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 38.7622, -90.5471). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 63303
According to public U.S. Census Bureau data, ZIP code 63303 is home to a community in Missouri. The figures below come from the U.S. Census and the American Community Survey (ACS).
Source: U.S. Census Bureau, American Community Survey (ACS) 2023 5-year estimates and 2023 Gazetteer. Figures are estimates and change with each new survey.
Find an Address in ZIP Code 63303
Need the full ZIP+4 code for a specific street address in Saint Charles? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 63303?
ZIP code 63303 is for Saint Charles, Missouri.
What county is ZIP code 63303 in?
ZIP code 63303 is in Saint Charles, Missouri.
What state is ZIP code 63303 in?
ZIP code 63303 is in Missouri (MO).
How do I find the ZIP+4 for an address in 63303?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 63303?
Nearby ZIP codes include 63301 (Saint Charles), 63302 (Saint Charles), 63304 (Saint Charles), 63332 (Augusta), 63338 (Cottleville).
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