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2025-2026 Back to School Information

Back to School Information and the Parent-Student Handbook for the 2025-2026 school year is now available. Action is required. Check ParentSquare for full message!
2025 Spring Semester Honor Roll Featured Photo

2025 Spring Semester Honor Roll

Congratulations to all our Monarchs who made the 2025 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!
2025 Ring of Honor Inductees Featured Photo

2025 Ring of Honor Inductees

Congrats to Lifetime Monarch Parents Debi and Tom Pavlik and long-time Catholic educators Ellen and Steve Viau. Learn more about this recognition of these deserving members of the Monarch family.
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Upcoming Events

Winter Formal

Time: 7 PM – 10 PM
Location: Hangar 21 South
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We Are MD

Our Mission

Mater Dei is a co-educational Catholic college preparatory high school located in Santa Ana, CA. Rooted in our tradition of Honor, Glory, and Love, we serve a diverse student community committed to knowledge, faith, and service.
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Faith & Service Academics Athletics Campus Life The Arts

Mater Dei At A Glance

  • Uniquely Mater Dei
    • 216 Zip Codes
    • 124 Feeder Schools
    • 73% Catholic/ 27% Non Catholic
  • Faith & Service
    • 45K+ Hours Given Per Year
    • 600+ Organizations
    • 140 Average Hours Per Graduate
  • Comprehensive Academics
    • 59 Honors Courses
    • 21 AP Courses
    • 109+ Electives
  • Nationally Recognized Athletics
    • 28 Sports Teams
    • 71% Athletes on Honor Roll
    • 23 Gatorade Players of the Year
  • Unparalleled Arts
    • 82 Courses
    • 47% of student body
    • 70% of Artists on Honor Roll
  • Global Alumni Network
    • 30K+ Worldwide
    • Robust Alumni Business Network
    • 20% Faculty Staff are Alumni