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Los Osos Post Office Hours

Retail Hours

Monday-Friday 9:00am - 5:30pm
Saturday 9:00am - 2:00pm
Sunday Closed

Pickup Services Hours

Monday-Saturday 9:00am - 5:30pm
Sunday Closed

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

PO Box Access Hours

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1189 Los Osos Valley Rd
Los Osos, CA 93402

The Los Osos Post Office is located in the state of California within San Luis Obispo County. This location serves 14,318 Los Osos residents with a median income of $57,837. It's estimated that approximately 22,853 packages pass through this post office each year.

Los Osos Post Office Location 93402

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