St. Mary's Preparatory is a four year secondary program of pre-college studies in a disciplined environment preparing young men for future study and careers of service. The Prep has a day student and boarding school program. St. Mary's is accredited by the State of Michigan Board of Education, the Archdiocese of Detroit, and MNSAA/MANS. Almost 100% of our graduates attend college. "If the Orchard Lake Schools did not exist, it would be necessary to establish them." -- Pope John Paul II

Upcoming Events

  • November 28, 2015
    MHSAA State Final
    Ford Field at 7:30 pm.
    Tickets are available in the ice arena office for $10.
  • Dec 6, 2015
    Chancellor’s Christmas Concert
    Shrine Chapel
  • Dec 8, 2015
    Advent by Candlelight
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  • Sunday, January 24, 2016
    Freshman Class Mass & Brunch at 11:00am at Shrine Chapel for an opportunity to celebrate Mass together!


  • Wednesday, Nov. 25 - NO SCHOOL
  • Congratulations to our Eaglets on their semi-final win against East Grand Rapids on Saturday!