• Emergency Donations:  Making an Impact to fight the stress of COVID-19! Click here to learn more…

  • Contact Us

    Contact Us


    Impact 100 East Bay
    P.O. BOX 2889 Castro Valley, CA 94546.

    Impact 100 East Bay is incorporated in the State of California. As a 501(c) (3) organization, we are classified as a public charity and contributions are deductible under section 170 of the internal Revenue Code. Impact 100 East Bay is also qualified to receive tax deductible bequests. Our tax id number (Employer Identification Number) is 81-3431763.