What are the opening hours?

Monday 10am - 8pm Tuesday 10am - 8pm Wednesday 10am - 8pm Thursday 10am - 8pm Friday 10am - 6pm Saturday 10am - 6pm

Diamond Bar Library

05/18/2026

Check out this week's awesome programs! Visit our website for registration details.

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+19098614978

https://lacountylibrary.org/diamond-bar-library/

21800 Copley Drive
Diamond Bar, CA
91765