Membership Membership Type: Full Member School Type: High School, Grades 9-12 Board District: #7 St. Louis County: St. Charles Contact Information Address: 31 St Dominic Dr O'fallon, MO 63366-2395 Phone: (636) 240-8303 Fax: (636) 240-9884 School Website: https://www.stdominichs.org/ Facebook: Twitter: sdhsathletics Instagram: School Details School Colors: Blue/White Boys Mascot: Crusaders Girls Mascot: Lady Crusaders Boys Logo: Girls Logo: Location St. Dominic High School 38.804584 -90.721716 #222 0 31 St Dominic Dr O'fallon, MO 63366-2395 (636) 240-8303 Get Directions