News Flash


Posted on: January 16, 2024

April marks 35 years of cityhood!

35th City Birthday Party
April 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 activities for the entire family. There will be live entertainment and demonstrations, games and attractions, food trucks, and a variety of vendors providing information and giveaways. The festive event will include the recognition and presentation of awards to several community volunteers.

  • The day’s activities include:
  • Inflatable Attractions
  • Game Booths
  • Food Trucks
  • Information Booths
  • Business Expo
  • Public Safety Displays
  • City History Display
  • Diamond Bar Center 20 Anniversary Display
  • Crafts, Face Painting, and Entertainment

For details, visit City Birthday webpage at

Additional Info...
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