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Diamond Bar Library

21800 Copley Dr
Diamond Bar, CA 91765
(909) 861-4978

Mon
11 - 9
Tue
11 - 9
Wed
11 - 9
Thu
11 - 9
Fri
10 - 5
Sat
10 - 5
Sun
Closed

Pui-Ching Ho, Library Manager

Diamond Bar Library

caution signThe online catalog will be unavailable from 1:00 PM to 3:00 PM on Tuesday, 9/2/2014 for system maintenance. We apologize for the inconvenience.

  • about
  • collection
  • services
  • computers
  • community
  • Building size: 18245 sq. ft.
  • Children's area with Family Place
  • Teen Space
  • Book Drop for returning items accessible 24 hours

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Diamond Bar Library has:

  • Public computers: 11
  • Children's computers: 10
  • Early literacy computers: 6
  • Teen computers: 6
  • Free Wi-fi

Computer policies for the County Library

friends of the library

Friends of the Diamond Bar Library is a volunteer-run organization that supports the library and library events - join today to get involved!

Friends of the Diamond Bar Library provides these service(s) to support the library:

library history

Originally opened in 1977, the Diamond Bar Library has long provided valuable services to both residents and visitors.

The Diamond Bar Library at 1061 Grand Avenue was rededicated on August 15, 1998 after renovations made possible by the City of Diamond Bar Redevelopment Agency, the County of Los Angeles, and the Diamond Bar Friends of the Library.

On July 28, 2012, the Diamond Bar Library celebrated the grand opening of the new location at 21800 Copley Drive. The new 18, 245 square foot library is located on the 1st floor of the City Hall building.

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Library Events

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