Justin-Siena High School
Education Administration ProgramsCalifornia, United States51-200 Employees
Justin-Siena High School is a Catholic, college-preparatory secondary school rooted in the Lasallian tradition. It occupies a 40-acre campus in Napa, California, and serves about 635 students in grades 9 through 12, drawing families from Napa, Sonoma, and Solano Counties. The institution holds accreditation from the Western Association of Schools and Colleges and the Western Catholic Education Association, and its leadership comprises a President and Principal supported by De La Salle Christian Brothers, Dominican Sisters of San Rafael, and lay staff. Justin-Siena traces its origins to 1966, when Justin High School and Siena High School opened on adjacent campuses and merged in 1972; sponsorship was transferred to the De La Salle Christian Brothers in 2005-06. It is part of a global Lasallian network spanning 84 countries. In 2023, Joe Welling was named principal.