Mater Dei High School
Forward in Vision, Rooted in Tradition

About MD
Mater Dei is a distinguished destination of excellence in academics and technology, the arts, faith and service, campus life, and athletics. We are proud to be Orange County’s oldest and largest Catholic high school.
Admissions
Your journey to becoming a Monarch starts here! Tour campus, schedule a shadow day, begin your application, and more. We are excited for you to join the MD family!
Programs
Built on Catholic fellowship and intellectual rigor, our programs in academics, technology, athletics, faith and service, and the arts provide unlimited opportunities for student success. Comprehensive counseling and wellness resources educate and bolster families throughout the high school journey.
Faith in Action
Guided by the articulation of Catholic Social Teachings, Mater Dei prioritizes the faith development of our students with an emphasis on Christian service. We believe this allows our students to grow in their spiritual lives while living our gospel values through giving back to others and truly experiencing the face of God.
Campus Life
Through avenues of leadership, faith, shared interests, and extracurricular activities and events, students can make Mater Dei their own. Get involved today!
Community
Tradition never graduates. Alumni, lifetime parents, grandparents, and friends are a vital and vibrant aspect of our community. Once a Monarch, always a Monarch.
Giving

Events

Apr 2 Sat
- DrumLine Competition (West Covina High School)
- Winter Guard Competition (West Ranch High School)
Apr 4 Mon
- Winter Guard Rehearsal 2:30 PM – 5 PM (Le Vecke Center)
- Jazz Ensemble Rehearsal 2:45 PM – 5 PM
Apr 5 Tue
- Winter Guard Rehearsal 3 PM – 5 PM
- DrumLine Rehearsal 5 PM – 8 PM
Apr 6 Wed
- DrumLine Rehearsal 3 PM – 5 PM
Apr 7 Thu
- Winter Guard Rehearsal 2 PM – 5 PM
Apr 9 Sat
- MD Special Games Performance 8 AM – 9:30 AM (MDHS Band Room)
Apr 11 Mon
- Winter Guard Rehearsal 2:30 PM – 5 PM (Le Vecke Center)
- Jazz Ensemble Rehearsal 2:45 PM – 5 PM
Apr 12 Tue
- Winter Guard Rehearsal 3 PM – 5 PM
- DrumLine Rehearsal 5 PM – 8 PM
Apr 13 Wed
- DrumLine Rehearsal 3 PM – 5 PM
- BOOSTER MEETING 7 PM – 8 PM (MDHS Band Room)
Apr 14 Thu
- Winter Guard Rehearsal 2 PM – 5 PM
Apr 16 Sat
- DrumLine Competition (Jurupa Valley High School)
- Winter Guard Competition 3 PM – 4 PM (WGASC Championships)
Apr 18 Mon
- Winter Guard Rehearsal 2:30 PM – 5 PM (Le Vecke Center)
- Jazz Ensemble Rehearsal 2:45 PM – 5 PM
Apr 19 Tue
- Winter Guard Rehearsal 3 PM – 5 PM
- DrumLine Rehearsal 5 PM – 8 PM
Apr 20 Wed
- DrumLine Rehearsal 3 PM – 5 PM
Apr 21 Thu
- Winter Guard Rehearsal 2 PM – 5 PM
Apr 25 Mon
- Winter Guard Rehearsal 2:30 PM – 5 PM (Le Vecke Center)
- Jazz Ensemble Rehearsal 2:45 PM – 5 PM
Apr 26 Tue
- Winter Guard Rehearsal 3 PM – 5 PM
- DrumLine Rehearsal 5 PM – 8 PM
Apr 27 Wed
- DrumLine Rehearsal 3 PM – 5 PM
Apr 28 Thu
- Wind Ensemble Rehearsal 2 PM – 3:30 PM
- Winter Guard Rehearsal 2 PM – 5 PM
Apr 30 Sat
- DrumLine Competition 3 PM – 4 PM (Mission Hills High School)

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