Private Schools in East Islip, New York

The Knox School is a prestigious independent day and boarding school serving East Islip and the greater Long Island area. As Long Island's oldest independent school, it offers a comprehensive college preparatory curriculum with International Baccalaureate options. The school features a 40-acre waterfront campus with state-of-the-art facilities including science laboratories, innovation centers, art studios, and athletic complexes. Knox emphasizes personalized learning with an 8:1 student-teacher ratio and offers extensive extracurricular opportunities including competitive athletics, robotics, and performing arts programs.

St. Anthony's High School is a highly-rated Catholic college preparatory school serving students from East Islip and throughout Long Island. The school offers a comprehensive academic program with 21 Advanced Placement courses and specialized academies in STEM, business, and humanities. The 52-acre campus features modern academic buildings, science and technology labs, extensive athletic facilities, and performing arts spaces. St. Anthony's is known for its strong community spirit, competitive athletic programs, and commitment to Franciscan values. The school maintains a 98% college acceptance rate with graduates attending top universities nationwide.

St. John the Baptist Diocesan High School is a highly-regarded Catholic college preparatory school serving East Islip and surrounding communities. The school offers a rigorous academic program with 24 Advanced Placement courses, extensive STEM offerings, and comprehensive fine arts programs. With a 100% college acceptance rate, the school emphasizes character development alongside academic excellence. The 32-acre campus features modern science labs, technology centers, athletic facilities, and performing arts spaces. The school maintains small class sizes and offers over 60 clubs and 25 athletic teams.