San Dimas Chamber of Commerce Office Hours:

The San Dimas Chamber of Commerce office is open from Monday to Thursday from 9 a.m. to 5 p.m. but is limiting walk-in traffic. To ensure timely service please, call ahead and schedule an appointment. The San Dimas Chamber staff can be reached at (909) 592-3818 or by email at 

About the San Dimas Chamber

The Mission of the San Dimas Chamber of Commerce is to foster and promote the growth of the business and professional community while enhancing the quality of life in San Dimas.

Everything We Do Is Based on These Core Values
As the San Dimas Resource Center we are committed to the following:

Creating a Strong Local Economy
Providing Networking Opportunities
Promoting the Community
Representing the Interests of Business with Government
Providing Marketing Opportunities and Business Tools for Success

Our office is located at the historical Martin House-246 E. Bonita Ave. San Dimas, CA 91773.

Our office hours are Monday-Thursday from 9:00 a.m. – 4:30 p.m. and closed on Fridays. For questions, please call 909-592-3818 or email at

Membership Starts Here

Let’s work together to make business happen and our community stronger. Join now!

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