CASTRO VALLEY POST OFFICE 94546

Castro Valley Post Office Hours


Retail Hours

Monday-Friday 9:00am - 5:00pm
Saturday 9:00am - 1:00pm
Sunday Closed

Pickup Services Hours

Monday-Friday 9:00am - 5:00pm
Saturday 9:00am - 1:00pm
Sunday Closed

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

PO Box Access Hours

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

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20283 Santa Maria Ave
Castro Valley, CA 94546

The Castro Valley Post Office is located in the state of California within Alameda County. This location serves 42,209 Castro Valley residents with a median income of $71,986. It's estimated that approximately 67,370 packages pass through this post office each year.

Castro Valley Post Office Location


Castro Valley California Local Links