Justin-Siena High School, located in Napa Valley, California, is a Catholic, co-ed boarding school that aims to provide a loving community for students that prepares students to serve and to lead in an ever-changing world. Founded in 1966, Justin-Siena High School has established a successful, holistic college-preparatory curriculum designed to train students for competitive colleges and universities.
Justin-Siena High School
From Justin-Siena Leadership
Since 1966 Justin-Siena High School has provided a unique, college preparatory experience to students and families from Napa, Solano, and Sonoma Counties, and around the world. At the heart of our educational mission is a deep sense of community along with a commitment to quality education. We encourage you to review our history, mission, philosophy, and what it means to be a part of all that Justin-Siena has to offer.
For many people, high school represents four of the most formative years of their lives. It is our honor to, in unity and association with the dedicated faculty and staff, serve the young people entrusted to our care. Together, in partnership with parents, we develop the emotional, intellectual, and personal capacity of each student. Come be a part of the Justin-Siena experience today!
School Facts
A great education requires more than a seat in the classroom. At Justin-Siena High School—an exclusive partner of Amerigo Napa Valley—you will have access to the tools, resources, and people that open the door to a limitless future.
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575 Students
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Advanced scientific and academic classrooms
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Award-winning fine arts program
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45 athletic teams
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Project Lead the Way advanced engineering coursework
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Technologically advanced classrooms
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1:12 faculty to student teacher ratio
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Athletic stadium and newly renovated gymnasium
Located on a safe, residential, 40-acre campus in Napa Valley, the Justin-Siena campus offers students everything they need to grow as students and become successful. The Justin-Siena facilities include scientific and academic classrooms, an athletic stadium and a performing arts center. Students live in an on-campus dormitory with a swimming pool and have full access to the school grounds and facilities. Justin-Siena’s academic facilities include advanced classrooms equipped with SMART technology, Apple TV's, 3D printers, and wireless internet. New renovations to academic wings give students the flexibility to work in classrooms, small group meeting spaces, or seminar rooms when necessary. If students choose to work in a more social environment, the student center is a large, comfortable space with computers, printers, multimedia access, and study rooms. All athletic teams have dedicated spaces for practices and competition. Students can train in the newly renovated gymnasium, weight room, and are able to utilize locker rooms to store equipment. In addition, the school provides an athletic trainer on campus for athletic support.