Justin-Siena is a co-educational independent Catholic High School sponsored by the De La Salle Christian Brothers. We serve more than 650 students from the Napa Valley as well as the neighboring Solano County and Sonoma Valley. We have a strong commitment to serve those who could not otherwise afford a quality Catholic secondary school experience with one third of our student body receiving tuition assistance. The school operates a small on-campus boarding program for both domestic and international students as well as an international host family program. We offer a college preparatory curriculum, a competitive interscholastic athletic program, a highly regarded performing arts department, and an array of co-curricular opportunities. The campus is comprised of 40 acres and situated in northwest corner of the city of Napa.