how to register into the San Mateo Union High School District

  • Register Online

    • Online enrollment for the 2023-2024 school year 
    • Online enrollment for the current school year 
    • Complete the Online Enrollment Form and upload the required documents. For a list of documents needed for enrollment click on "Proof of Residence."  
    • Once Student Services has reviewed your submission, you will receive a confirmation email that your enrollment has been verified and your student has been placed.  
    • If additional information is required, you will be contacted by the Office of Student Services.

    Additional Information

    • Once the residency verification and enrollment process is complete students are eligible to participate in high school programming.
    • Students residing in a Shared Residency or with a Caregiver must submit a copy of the Caregiver, Shared, Parent-Guardian Authorization and Honestly Affidavit Form in addition to the above documents. The Caregiver Affidavit must be notarized. These forms are also available at the Office of Student Services.

    If you have any questions, require additional assistance, or cannot provide any of the required documents, please contact the Office of Student Services by calling 650-558-2251, or emailing  

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