DEFIANCE POST OFFICE 63341

Defiance Post Office Hours


Retail Hours

Monday-Friday 9:00am - 11:00am, 1:00pm - 4:00pm
Saturday 9:00am - 10:45am
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 8:00am - 11:30am, 1:00pm - 3:30pm
Saturday 9:00am - 10:30am
Sunday Closed

Monday-Friday 9:00am - 11:00am, 1:00pm - 4:00pm
Saturday 9:00am - 10:45am
Sunday Closed

Lobby Hours

Monday-Friday 7:30am - 4:00pm
Saturday 8:15am - 10:45am
Sunday Closed

USPS Shipping Rate Calculator

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Gregory L Miller (Postmaster) gregory.l.miller@usps.gov
2959 S Highway 94
Defiance, MO 63341

The Defiance Post Office is located in the state of Missouri within St Charles County. This location serves 3,530 Defiance residents with a median income of $89,648. It's estimated that approximately 5,634 packages pass through this post office each year.

Defiance Post Office Location


Defiance Missouri Local Links