Information on your voter registration affidavit (or form) will be used by Elections Officials to send you official information on the voting process, such as the location of Vote Centers, the issues and candidates that will appear on the ballot as well as a Vote by Mail ballot. Commercial use of voter registration information is prohibited by law—it is a misdemeanor.
Protecting Your Privacy
Voter information may be provided to a candidate for office, a ballot measure committee or other persons for election, scholarly, journalistic, political or governmental purposes as determined by the Secretary of State. Your driver’s license number, Social Security number and signature as shown on your voter registration card cannot be released for these purposes. If you have any questions about the use of voter information or wish to report suspected misuse of such information, please call the Secretary of State’s Voter Protection and Assistance Hotline at 800.345.VOTE.
For more information about Voter Registration, call:
You may register at any time, but to be eligible to vote in an upcoming election, your Voter Registration Form must be submitted online by midnight no later than 15 days before that election. If you are mailing a Voter Registration Form, it must be postmarked no later than 15 days before that election and received by the San Mateo County Registration & Elections Division by the close of the polls on Election Day.
- Confirm my registration status
If you have not re-registered since 1980, your birth year may not be in our database. If your information is not found, please contact the Elections Division at 650.312.5222.
- During an election, you can confirm your ballot was received on this page. You can also sign up to receive automated alerts on the status of your ballot at wheresmyballot.sos.ca.gov.
If you registered by mail, you may have to show identification when you vote for the first time.
If you did not provide one of the required types of identification at the time you registered, and you are voting in a federal election (there are presidential or congressional candidates on the ballot), you may be asked to show one of the following:
In accordance with the Voting Rights Act, the ballot and voting instructions are available in three languages: English, Spanish and Chinese.
To request a Sample Ballot & Official Voter Information Pamphlet or a Vote by Mail ballot in Spanish or Chinese, call 1.888.SMC.VOTE (1.888.762.8683) or email firstname.lastname@example.org.
About Safe at Home
Certain voters facing life-threatening situations may qualify for confidential voter status.
Safe at Home is California’s address confidentiality program administered by the Secretary of State’s office. The program, which provides a free post office box and mail forwarding service, is designed to help victims and survivors of domestic violence, stalking or sexual assault to start new lives in peace and to provide added protections to their overall safety plans.
Participants may request a Confidential Voter Registration Form.
Information on your voter registration affidavit is used by elections officials to send you official information on the voting process, such as the location of your polling place and the issues and candidates that will appear on the ballot.
Commercial use of voter registration information is prohibited by law and a misdemeanor.
Voter registration information may be provided to: