Post Offices

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

Bethel Island Post Office

Post Office in Bethel Island, California on Bethel Island Rd. Operating hours, phone number, services information, and other locations.

Address: 6444 Bethel Island Rd, Bethel Island, CA 94511
Phone: 925-684-2561
Fax: 651-456-6355
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:30am - 5:00pm
Tuesday 9:30am - 5:00pm
Wednesday 9:30am - 5:00pm
Thursday 9:30am - 5:00pm
Friday 9:30am - 5:00pm
Saturday 9:30am - 12:00pm
Sunday Closed

Lobby Hours

Monday 7:30am - 8:00pm
Tuesday 7:30am - 8:00pm
Wednesday 7:30am - 8:00pm
Thursday 7:30am - 8:00pm
Friday 7:30am - 8:00pm
Saturday 7:30am - 8:00pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 12:00pm
Sunday Closed
Bethel Island Post Office
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Knightsen Post Office

Address: 3019 Knightsen Ave, Knightsen, CA 94548
Phone: 925-625-2724
Fax: 925-625-2016
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Knightsen Post Office
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Oakley Post Office

Address: 400 Del Antico Ave, Oakley, CA 94561
Phone: 925-625-5687
Fax: 925-625-7523
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Oakley Post Office
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Brentwood Post Office

Address: 18 Oak St, Brentwood, CA 94513
Phone: 925-240-2065
Fax: 925-513-6680
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Brentwood Post Office
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Byron Ca Discovery Bay Post Office

Address: 3345 Bixler Rd, Discovery Bay, CA 94505
Phone: 925-634-1164
Fax: 925-634-1468
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Byron Ca Discovery Bay Post Office
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Antioch Post Office

Address: 2730 W Tregallas Rd, Antioch, CA 94509
Phone: 925-757-0379
Fax: 925-778-8149
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Antioch Post Office
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