City Hall

 
Directions

21810 Copley Drive
Diamond Bar, CA 91765

21810 Copley Drive
Diamond Bar, CA 91765

909-839-7000

909-861-3117



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

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