News Flash

Posted on: January 30, 2024

Outstanding Volunteer Award Program

Outstanding Volunteer Award Program is Open for Nominations

Nominations are now open for the City’s Outstanding Volunteer Awards Program, and the City needs your help to identify the individuals whose positive contributions deserve to be officially recogni...

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Additional Info... Highlights
Posted on: January 30, 2024

Arbor Day Poster Contest

Arbor Day Poster Contest

Diamond Bar students are invited to showcase their creativity and celebrate the importance of trees by taking part in the City’s 2024 Arbor Day Poster Contest.

Organized in observance of Arbor Day, the nation’s o...

Contest Details

Additional Info... Highlights
Posted on: January 16, 2024

April marks 35 years of cityhood!

35th City Birthday PartyApril 6, 2024 | 10 a.m.-4 p.m.Summitridge Park and Diamond Bar Center

This April marks 35 years of cityhood for Diamond Bar! To commemorate this milestone, the City is planning a special community celebration packed with fun activit...

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Additional Info... Highlights
Posted on: August 4, 2023 | Last Modified on: July 28, 2020

Latest News from City Hall

Read the latest news from City Hall in the week's Highlights

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Posted on: February 26, 2024

57/60 Confluence Project Construction Updates

5760 interchange

This week's road and freeway on- and off-ramps closures

Upcoming Closures Highlights
Posted on: December 14, 2023

City Government Explained Series

Website Highlights

Gain a better understanding of how your City government works!

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