Message from Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder

Mark Church Welcome to the San Mateo County Elections website.

I am honored and privileged to serve as your Chief Elections Officer & Assessor-County Clerk-Recorder. I am committed to ensuring that our office continues its tradition of excellence and operates at a maximum level of efficiency and productivity.

Please use this website for easy access to the information and services that our office provides to the citizens of San Mateo County. I hope you find it a useful resource for election information.


Voter Registration

Protecting Voter Privacy

Information on your voter registration affidavit will be 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—it is a misdemeanor.



Where, When and How to Vote

Voting is the fundamental right of every US citizen. The San Mateo County Registration & Elections Division strives to uphold and preserve this right through voter registration, voter education and accessible voting options.

Here you will find information on

1) where, when and how you can vote and

2) learn about the candidates and measures to make well informed decisions for the upcoming election. 


Candidates and Campaigns

Election Calendar

Every aspect of running for office or running a campaign has code-defined time frames. The Election Calendar is a guide that is created especially for every election. It includes all the deadlines that candidates, campaigns, reporters and the voting public need to know.

June 5, 2018 Statewide Direct Primary Election


How to Get Voter File Information


Election Officers

Become a Vote Center Representative

On Election Day, Vote Center Representatives welcome all voters, facilitate voting, conduct Vote Center operations in accordance with election law and follow defined procedures. Many people find it a rewarding experience and return year after year to serve. We encourage you to become a San Mateo County Vote Center Representative.