Clayton Post Office Hours

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Retail Hours

Monday-Friday 9:00am - 6:30pm
Saturday 9:00am - 3:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 10:00am - 5:00pm
Saturday-Sunday Closed

Monday 9:00am - 5:00pm
Tuesday-Friday 9:00am - 6:30pm
Saturday 9:00am - 3:00pm
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

Monday-Sunday 12:01am - 11:59pm

Last Collection Times

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Betty J Schumacher (Postmaster)
7750 Maryland Ave
Saint Louis, MO 63105

The Clayton Post Office is located in the state of Missouri within St Louis County. This location serves 17,667 Saint Louis residents with a median income of $89,545. It's estimated that approximately 28,199 packages pass through this post office each year.

Clayton Post Office Location

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