All LA County Library locations will be closed on Wednesday, December 25, 2024 and Wednesday, January 1, 2025 in observance of Christmas Day and New Year's Day. Our digital library is open 24/7.
  • CONTACT US |
    ×

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

Library Happenings Dec 2024

Library Happenings December 2024

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

Read More

Free Naloxone and Fentanyl test strips

LA County Library’s Naloxone Clinics Now Offering Free Fentanyl Test Strips to Combat Opioid Overdoses

LA County Library announces free Fentanyl test strips at Naloxone Clinics.

Read More

Library Happenings November 2024

Library Happenings November 2024

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

Read More

Native American Heritage Month

LA County Library Celebrates Native American Heritage Month with Immersive Storytelling, Workshops, and Author Talks in November

LA County Library announces Native American Heritage Month events and activities.

Read More

Skip to content