IMPORTANT: If you have moved to a new residence, do not use this form. Please re-register at this link, or with a paper registration form. Paper forms are available at the Elections Office, local libraries, and post offices.
Every San Mateo County voter receives a Vote by Mail ballot. It is important to keep your information up to date so we can ensure your ballot reaches you.
If you want to remove a mailing address you provided to us previously, complete the permanent change of address form and enter “none” under Mailing Address.