City Hall

 
Directions

21810 Copley Drive
Diamond Bar, CA 91765

21810 Copley Drive
Diamond Bar, CA 91765

(909) 839-7000



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

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


Field / Weather Hotline 

(909) 348-8310