Martinez Post Office Hours

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Retail Hours

Monday-Friday 8:30am - 5:00pm
Saturday 10:00am - 1:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 10:00am - 3:00pm
Saturday-Sunday Closed

Monday-Friday 9:00am - 6:00pm
Saturday 10:00am - 1:00pm
Sunday Closed

Lobby Hours

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

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

PO Box Delivery Time

Monday-Saturday 10:00am
Sunday Closed

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Angelica Tang (Postmaster)
4100 Alhambra Ave
Martinez, CA 94553

The Martinez Post Office is located in the state of California within Contra Costa County. This location serves 47,065 Martinez residents with a median income of $74,708. It's estimated that approximately 75,121 packages pass through this post office each year.

Martinez Post Office Location

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