Contact Us

21810 Copley Drive, 2nd floor l Diamond Bar, CA 91765
tel 909.839.7000  l  fax 909.861.3117   l  email

The city of Diamond Bar is located at the crossroads of the Pomona (SR-60) and Orange (SR-57) freeways in the eastern San Gabriel Valley of Los Angeles County.

Office Hours
Monday through Thursday l 7:30 a.m. to 5:30 p.m.
Friday  l  7:30 a.m. to 4:30 p.m.

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