This School is no longer MSHSAA Member School. School Colors & Logos Dragons Green/White boys girls Social Media St.Mary'sHighSchool stmarysdragons stmarysdragons Membership Full Member High School, Grades 9-12 St. Louis County Board District: #7 St. Louis Contact Information 4701 S Grand Blvd St. Louis, MO 63111-1498 (314) 481-8400 (314) 481-3670 fax Location 4701 S Grand Blvd St. Louis, MO 63111-1498 (314) 481-8400 Get Directions