Justin-Siena High School

Justin-Siena is a top-tier high school located on a 40-acre park-like campus. Students have the opportunity to study high school in Napa Valley, a safe and peaceful community near San Francisco.

Key Info
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Napa Valley, California
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Accepting Grades 9-11
August/September, January Intakes
Language Requirement:
TOEFL equivalent 60-80
Cost of Attendance
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On-Campus Boarding and Off-Campus Residence
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Amerigo Select School
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Amerigo Signature School
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Brochure Download
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More School Info
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School Website
Why Study at Justin-Siena High School?
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Four-Year Application-Based Engineering Program with Project Lead the Way

Students can choose from a range of engineering courses while using industry-leading software.

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Networking Opportunities with Alumni

Students have opportunities to learn from successful Justin-Siena alumni in a wide range of fields, including those who work in Silicon Valley and in Hollywood.

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Small Class Sizes with 1:1 Attention from Teacher

With 615 total students, Justin-Siena provides students with a family-like atmosphere and individualized attention from teacher. The average class size is 23, with a student-faculty ratio of 14:1.

Study in Napa Valley, California, United States

Justin-Siena is located in Napa Valley, California – a world-renown hub of culture, restaurants and industry located just 48 miles (77 km) from San Francisco.

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Population of 139,000
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Near San Francisco International Airport (SFO), Oakland International Airport (OAK) and Sacramento International Airport (SMF)
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Close to top-ranked universities including Stanford University (#3), University of California – Berkeley (#15) and University of California – Davis (#28)
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Napa Valley, California

Justin-Siena High School Facts


Niche Ranking




Co-Ed Enrollment

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Taking Justin-Siena’s series of engineering courses and being a part of the robotics team have furthered my lifelong passion to major in computer science and engineering.



Justin-Siena graduate


Faculty-to-Student Ratio


AP, Honors and Dual Credit Courses

$10 million

in merit scholarships earned by recent graduates


of students receive an AP score of 3 or higher


Fine and Performing Arts Program
The school’s program includes an innovative dance program, exclusive partnerships with music organizations and a robust theater program.

Mock Trial Team
Justin-Siena’s Mock Trial team is highly-ranked in the state, and helps students develop analytical and communication skills.

Unique Electives
As a top high school in California, students at Justin-Siena have access to a wide range of unique elective courses, including Sports Medicine, Film Studies, Diversity and Culture and much more.

See the school brochure here!
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Accommodation Options

Justin-Siena international students live in fully-staffed, comfortable residences both on and near the school campus. 

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