A Certificate of Registration will include the following information:

  • your full name, 
  • address where you are registered  to vote, 
  • date of birth, 
  • party affiliation, 
  • original registration date,
  • most recent elections you participated in

A Certificate of Registration is sometime purchased to provide proof of address to a school district.

You may obtain your Certificate of Registration in-person or by mail from the Registration & Elections Division.  

We are open 8 a.m. to 5 p.m. Monday through Friday (except holidays). The certificate will be prepared while you wait if you come to our office.  

  • Bring $1.50, cash or check, and
  • Bring  your driver’s license or other id with photo.       

To obtain a Certificate of Registration by mail, please send a copy of your photo id and check for $1.50 (made payable to the County of San Mateo) to:

Registration & Elections Divisions
40 Tower Road
San Mateo, CA 94402