Application Process

Complete the Online Admission Application 
  • See the tab on the right to access the application. 
  • Early Decision applications due December 15, 2019
  • Regular Decision applications due January 24, 2020
Request Recommendations
  • As part of the application process, Justin-Siena requires recommendations from the applicant's Principal, English Teacher, and Math Teacher. Additionally, you may request a recommendation from other teachers who can attest to the applicant's academic and personal qualities. You will be able to request recommendations on the admission application, or you can contact the admissions office. 
Submit Tuition Assistance Application and Merit Based Scholarship Application (if needed)
  • All deadline information and details can be found here.
  • Applications will be available in October and due in February
Take the Entrance Examination

       • All prospective 9th graders must take the PSAT 8/9 as the Entrance Exam. Check-in begins at 8am in the Dining Hall and the test begins promptly at 8:30am.  Click here to register. 

Admissions Interview
  • Once the Admissions Application has been submitted, the admission office will contact you to schedule your family interview
  • Admissions Interviews will be January 18 2020 and February 1 2020
Receive Your Admission Decision
  • Early Decision beginning February 10 2020
  • Regular Decision beginning February 28 2020
Say “Yes!”
  • Early decision register online by February 23 2020
  • Regular decision register online by March 13 2020

Track your Application

We are pleased to offer Admissions Tracker to allow you to check the status of your application. Please click here to access your account, and then sign in with the email address and password established when you completed the online application. You will then be able to view the outstanding items in your admission portfolio. Please note that there may be a delay of a few days for us to manually update your file. 

For more information, please contact

List of 4 members.

  • Photo of Alicia Valdivia

    Alicia Valdivia 

    Director of Admissions
    707.255.0950 ext. 621
  • Photo of Megan Dominici

    Megan Dominici '92 

    Director of Outreach
    707.255.0950 ext. 591
  • Photo of David Granucci

    David Granucci 

    Outreach Associate/Head Boys Basketball Coach
    707.255.0950 ext. 730
  • Photo of Jeremy Tayson

    Jeremy Tayson 

    Admissions and Communications Associate; Head Baseball Coach
    707.255.0950 ext. 734

Justin-Siena High School

4026 Maher Street
Napa, CA, 94558
United States
T: 707.255.0950 
F: 707.255.0334
Justin-Siena is a Lasallian Catholic college preparatory community that serves young men and women in grades 9–12.