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Public Information

  1. Rate Diamond Bar Connection Newsletter

    The City's official monthly newsletter.

  1. Website Feedback Survey

    Help us improve our website by letting us know what you like and what we can improve. Thank you for your time!

Public Safety

  1. Ask A Deputy

    Submit your public safety-related questions, concerns, or comments

  2. Start a Neighborhood or Business Watch

    Learn how to start a Watch in your area.

  1. Emergency Alert Sign Up

    Receive notification by email, voice or text in the event of a disaster or significant event in Diamond Bar.

Special Events

  1. Concerts in the Park Survey

    Did you attend the Summer Concerts in the Park? Let us know which band you enjoyed the most and which genre of music you would like to... More…

Take a Survey

  1. How Are We Doing?
  2. Website Feedback Survey

    Help us improve our website by letting us know what you like and what we can improve. Thank you for your time!

  1. Update Your Information: Non-Profit / Community Service Organization