Justin-Siena High School, established in 1966, is a Catholic college preparatory institution in the Lasallian tradition, located in Napa, California. The school serves approximately 650 students from diverse backgrounds, including international students from 20 countries. With a student-to-teacher ratio of 12:1, Justin-Siena emphasizes academic excellence, faith-based education, and community service. The campus spans 40 acres and offers a range of extracurricular activities, including 33 athletic teams and a robust arts program. The school's motto, 'Sempre Avanti' (Always Forward), reflects its commitment to continuous growth and preparing students to lead in an ever-changing world.