Mater Dei High School Home
Monarch News
Introducing the My Mater Dei App
This student-created app makes it easier to navigate your Mater Dei day with a simplified view of the daily master calendar, personalized class schedules and Upper or Lower Lunch. Coming directly to student iPads and available now in the Apple App Store.
INTRODUCING: Ask Monty - Website Chatbot
Looking for when school starts? How about Semester Exams or Christmas Break? Or want to know who to contact to report an absence? ASK Monty - our digital AI assistant right here on materdei.org.
2026 Spring Semester Honor Roll
Congratulations to all our Monarchs who made the 2026 Spring Semester Honor Roll. Your hard work and dedication have paid off, showcasing your commitment to academic excellence. Keep up the great work and continue to inspire others with your achievements!
Upcoming Events
Walk in Faith 86
Location: Mission San Luis Rey
Office Hour
Time: 7:45 AM – 8:30 AM
Office Hour
Time: 2:30 PM – 3:30 PM
Office Hour
Time: 1:30 PM – 3:30 PM
Mater Dei At A Glance
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Uniquely Mater Dei
- 216 Zip Codes
- 124 Feeder Schools
- 73% Catholic/ 27% Non Catholic
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Faith & Service
- 45K+ Hours Given Per Year
- 600+ Organizations
- 140 Average Hours Per Graduate
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Comprehensive Academics
- 59 Honors Courses
- 21 AP Courses
- 109+ Electives
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Nationally Recognized Athletics
- 28 Sports Teams
- 71% Athletes on Honor Roll
- 23 Gatorade Players of the Year
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Unparalleled Arts
- 82 Courses
- 47% of student body
- 70% of Artists on Honor Roll
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Global Alumni Network
- 30K+ Worldwide
- Robust Alumni Business Network
- 20% Faculty Staff are Alumni
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