Chaminade College Preparatory School

Saint Louis, Missouri · Day and boarding · Boys · Grades 6–12

Chaminade College Preparatory School is a Catholic day and boarding school for boys in grades 6 through 12, located in St. Louis, Missouri, and sponsored by the Marianist Province of the United States. The Society of Mary founded it in 1910. Boarders live in Marianist Hall, a residence opened in January 2025, and can choose five-day or seven-day boarding; any student entering grades 6–12 is eligible. The school reports a 9:1 student-teacher ratio and more than 110 courses offering college credit. For 2026–27, day tuition is $26,520 and room and board adds $29,880. International applicants submit an English test score and receive an I-20 after enrolling.

• Catholic Marianist school for boys in grades 6–12, founded in 1910
• Five-day and seven-day boarding in Marianist Hall, opened January 2025
• 9:1 student-teacher ratio
• More than 110 courses that can earn college credit
• Supervised evening study hours for boarders