Private Schools in East Alton, Illinois

Principia Upper School is a highly-regarded Christian Science college preparatory school serving students from both Missouri and Illinois, including the East Alton area. The school offers a rigorous academic program with International Baccalaureate and Advanced Placement courses, exceptional arts programs, and competitive athletics. Located just across the river in St. Louis County, Principia features state-of-the-art facilities including science labs, performing arts centers, and extensive athletic complexes. The school emphasizes character development and global citizenship through its diverse student body and international programs.

Marquette Catholic High School is a comprehensive Catholic college preparatory school located just minutes from East Alton in neighboring Alton. The school offers a challenging academic curriculum with numerous Advanced Placement courses, strong STEM programs, and comprehensive fine arts offerings. Marquette features modern facilities including science laboratories, technology centers, and athletic facilities. The school maintains a strong tradition of academic excellence with nearly 100% college acceptance rate and emphasizes faith-based education combined with community service and leadership development.

Metro East Lutheran High School is a respected Christian college preparatory school serving students throughout the Metro East region, including East Alton families. The school offers a comprehensive academic program with college preparatory and honors courses, integrated technology throughout the curriculum, and strong fine arts and athletic programs. MELHS features modern classrooms, science labs, a performing arts center, and athletic facilities. The school emphasizes faith-based education while preparing students for college success, with a focus on developing well-rounded individuals through academic excellence, spiritual growth, and extracurricular involvement.