Post Offices

Post Offices in & near San Quentin, California. Operating hours, locations, phone/fax number, services information.

San Quentin Post Office

Post Office in San Quentin, California on Main St. Operating hours, phone number, services information, and other locations.

Address: 1 Main St, San Quentin, CA 94964
Phone: 415-456-4741
Fax: 415-455-5398
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 8:00am - 12:00pm, 1:00pm - 4:15pm
Tuesday 8:00am - 12:00pm, 1:00pm - 4:15pm
Wednesday 8:00am - 12:00pm, 1:00pm - 4:15pm
Thursday 8:00am - 12:00pm, 1:00pm - 4:15pm
Friday 8:00am - 12:00pm, 1:00pm - 4:15pm
Saturday Closed
Sunday Closed

Lobby Hours

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 4:15pm
Tuesday 4:15pm
Wednesday 4:15pm
Thursday 4:15pm
Friday 4:15pm
Saturday Closed
Sunday Closed