Contact Us


Thank you for your patience as changes and upgrades are being made to our phoneline! While these changes are in process the extensions listed below are not available. Please use the Phoneline number to speak to a volunteer.

Phoneline: 925-685-4357

Volunteers are available 24 hours a day (press 4 then wait while we contact one of our volunteers)

To hear a list of subcommittees and their extensions press "8" or you can see that list below:

  • 805 - Schedule Changes

  • 806 - Welcome To NA Workshop, NA Women's Committee, NA Youth Committee

  • 807 - Hospitals and Institutions, Service Workshop, and Fellowship Service Center

  • 808 - Area Service Committee Chair, ASC Secretary or Treasurer, or Regional Committee Members

  • 809 - Public Relations, Literature Chair, and Unity Day Committee

Be sure to leave details explaining what you need, and call back information so we can contact you

Mailing Address


P.O. Box 6094

Concord, CA, 94527

Email Addresses

Public Organizations

If you represent a community organization and wish to contact Contra Costa NA, you can use the contact form below. Please keep in mind that we have no way to respond to your submission unless you leave either an email address, phone number, or mailing address. This information is kept strictly confidential and is never given out.