Visiting & Applying

Join us for a Tour!

Brave for a Day

Want to see ALLHEART in action? We invite you to visit Justin-Siena High School through our Brave for a Day and Parent Talk & Tour visits. Led by our Student Ambassadors, and scheduled September–January, these visits offer a comprehensive experience for prospective families.

Don't see a date that works for you? You may also contact us for a private campus tour. 


Admissions Application
  • Please click here for the admissions application
  • Early Decision applications due December 15, 2023
  • Regular Decision applications due January 26, 2024
  • Late Decision application are accepted on a rolling basis after the Regular Decision deadline. Call the Admissions Office for more details.
  • Submit Tuition Assistance Application (if necessary) by January 31, 2024
  • Submit Merit-based Scholarship Application by January 31, 2024

Entrance Exam
  • Sign up to take the Entrance Exam on December 2 or December 9, 2023
Admissions Interview
  • Upon receipt of your Admissions Application, you will be contacted to schedule your family interview
  • Interviews will be January 21 and February 4
Admission Decision
  • Early Decision begins February 12, 2024
  • Regular Decision begins March 1, 2024
Say “Yes!”
  • Early Decision registration is due by February 25, 2024
  • Regular Decision registration is due by March 15, 2024

Student FAQ's

For more information, please contact

List of 3 members.

  • Photo of Alicia Valdivia

    Alicia Valdivia 

    Vice President for Enrollment Management; Instructor of Social Studies
    707.255.0950 ext. 621
  • Photo of Megan Dominici

    Megan Dominici 

    Director of Outreach
    707.255.0950 ext. 591
  • Photo of Jeremy Tayson

    Jeremy Tayson 

    Admissions & 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 people in grades 9–12.