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City Hall

21810 Copley Drive Diamond Bar CA 91765

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Physical Address:

21810 Copley Drive
Diamond Bar, CA 91765

Mailing Address:

21810 Copley Drive
Diamond Bar, CA 91765

Phone:

Emergency Phone:

Hours
Monday - Thursday
7:30 a.m. - 5:30 p.m.

Fridays
7:30 a.m. - 4:30 p.m.

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City of Diamond Bar
21810 Copley Drive
Diamond Bar California 91765
Phone: 909-839-7000
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Office Hours:

Monday - Thursday
7:30 a.m. - 5:30 p.m.
Friday
7:30 a.m. - 4:30 p.m.

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