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Diamond Bar Library

Library Hours

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

Holiday Closures

Get to Know This Library

About Diamond Bar Library

About Diamond Bar Library

  • Library Size: 18,245 sq ft
  • Space for Children
  • Book Drop
  • Space for Teens
  • Study Rooms: Capacity 4 - 6

Our Collections

Our Collections

Online Collections — Available 24 hours

Newspapers

Our Services

Our Services

Children's Services

Our Computers

Our Computers

  • Public Computers: 11
  • Children's Computers: 5
  • Teen Computers: 6
  • Laptop & Hotspot Kits: 5
  • Express Computers: 8
  • Early Learning Computers: 4

Our Community

Friends of the Library

Friends of Diamond Bar Library a volunteer-run organization that supports the library and library events

Friends of Diamond Bar Library provides the following services to support the library.

  • Friends of Diamond Bar Library Book Store

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.

Political Representatives

Local Links

Staff Picks (All Ages)

A monthly list of noteworthy titles selected by our Collection Development Services team.

See More Booklists

Paramount Library Grand opening with Supervisor Janice Hahn, LA County Library CEO Skye Patrick and Andrea Crow, Community Library Manager for Paramount Library

LA County Library and Supervisor Janice Hahn Celebrate Paramount Library Reopening After $4.8 Million Transformation

LA County Library announces the reopening of Paramount library after an extensive renovation.

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LA County Public Defender Record Clearing Project

LA County Library Offers Summer Expungement Clinics to Help Clear Criminal Records

LA County Library announces 3 Expungement Clinics to help clear criminal records this summer.

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LA County Naloxone clinic information

LA County Library Extends Naloxone Clinics Through Fall 2024 and Receives NACo Achievement Award

LA County Library Announces extension of Naloxone clinics and recognition from NACo.

Read More

Library Happenings July 2024

Library Happenings July 2024

Check out what's happening at LA County Library this month. Read, celebrate, learn, enjoy!

Read More

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