City of Diamond Bar

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City of Diamond Bar

21810 Copley Dr. Diamond Bar CA 91765
(909) 839-7000
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© 2025 Long Beach Area Chamber of Commerce | Site by GrowthZone

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Ph: (562) 436-1251 | Fax: (562) 436-7099

1 World Trade Center Suite 101
Long Beach CA 90831

Office Hours In-Person: 9:00am-5:00pm
Monday, Tuesday, Wednesday, Thursday
Office Hours Remote: Friday - by appt only

info@lbchamber.com

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