Saint Charles, MO

ZIP Codes in Saint Charles, Missouri

December 31, 2025

ZIP Code	Population	Coordinates
63301	51,401	38.8580, -90.4633
63302	--	38.5813, -90.8730
63303	47,285	38.7398, -90.5437
63304	42,738	38.7061, -90.6860

Saint Charles has 4 ZIP codes

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