Cancel Registration
Canceling Your Voter Registration
If you’ve moved out of San Mateo County, please cancel your voter registration.
Just fill out the Voter Registration Cancellation Request Form, sign and date it.
You may return it by mail, email or fax:
San Mateo County Registration & Elections Division
40 Tower Road
San Mateo, CA 94402
Fax
650.312.5348
If you have any questions, please contact us at 650.312.5222.
Deceased Letter
Written confirmation from family member or executor of a deceased voter: