Private Schools in Ontario, California

The Webb Schools is a prestigious independent boarding and day school located in nearby Claremont, serving students throughout the Inland Empire including Ontario. Founded in 1922, Webb offers a rigorous college preparatory education with exceptional academic programs. The school features a 70-acre campus with state-of-the-art facilities including modern science laboratories, extensive athletic facilities, and dedicated arts spaces. Known for its honor code and character education, Webb provides a comprehensive educational experience with small class sizes, advanced placement courses, and unique programs like the Raymond M. Alf Museum of Paleontology. The school maintains a 8:1 student-to-faculty ratio and has a strong track record of college placements at top universities.

St. Lucy's Priory High School is an all-girls Catholic college preparatory school serving students from Ontario and throughout the San Gabriel Valley. Founded by the Benedictine Sisters in 1962, the school combines rigorous academics with character formation rooted in Benedictine values. The curriculum includes honors and Advanced Placement courses across all disciplines, with particular strengths in science, mathematics, and the arts. The campus features modern classrooms, science labs, a performing arts center, and athletic facilities. St. Lucy's emphasizes leadership development and community service, with a strong track record of graduates attending competitive colleges and universities. The school maintains small class sizes and offers extensive extracurricular opportunities.

Damien High School is an all-boys Catholic college preparatory school that serves students from Ontario and the surrounding Inland Empire region. Founded in 1966 by the Archdiocese of Los Angeles, Damien provides a comprehensive education grounded in Catholic traditions and values. The school offers a robust curriculum including 23 Advanced Placement courses, a specialized STEM academy, and strong programs in business and the arts. The 22-acre campus features modern academic facilities, extensive athletic complexes, and dedicated spaces for technology and the arts. Damien emphasizes character development, leadership, and service while maintaining strong academic outcomes with graduates regularly attending top universities. The school offers a wide range of extracurricular activities and competitive sports programs.