Post Offices in & near Diamond Bar, CA

Diamond Bar Post Office

Post Office in Diamond Bar, California on S Diamond Bar Blvd. Operating hours, phone number, services information, and other locations.

Address: 1317 S Diamond Bar Blvd, Diamond Bar, CA 91765
Phone: 909-860-2469
Fax: 909-860-8253
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 5:00pm
Tuesday 9:00am - 5:00pm
Wednesday 9:00am - 5:00pm
Thursday 9:00am - 5:00pm
Friday 9:00am - 5:00pm
Saturday 9:00am - 2:00pm
Sunday Closed

Lobby Hours

Monday 6:00am - 6:00pm
Tuesday 6:00am - 6:00pm
Wednesday 6:00am - 6:00pm
Thursday 6:00am - 6:00pm
Friday 6:00am - 6:00pm
Saturday 6:00am - 5:00pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 1:00pm
Sunday Closed

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Walnu Post Office

Address: 280 S Lemon Ave, Walnut, CA 91788
Phone: 909-444-7901
Fax: 909-598-0524
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

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Pomona Post Office

Address: 580 W Monterey Ave, Pomona, CA 91769
Phone: 909-865-1267
Fax: 909-623-1952
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

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Chino Hill Post Office

Address: 14071 Peyton Dr, Chino Hills, CA 91709
Phone: 909-548-0695
Fax: 909-590-9926
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

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Rowland Heigh Post Office

Address: 1521 Nogales St, Rowland Heights, CA 91748
Phone: 626-369-5301
Fax: 626-968-5699
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

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San Dima Post Office

Address: 300 E Bonita Ave, San Dimas, CA 91773
Phone: 909-599-0651
Fax: 909-599-5821
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

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