St. Mary's Prep

St. Mary's Preparatory
Orchard Lake Schools
Attendance Hotline:
Vonica Saroki
(248) 392-9467

Summer Camps

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Orchard Lake St. Mary’s Preparatory has announced a new, innovative approach to learning and student development in the Fall of 2020. St. Mary’s will become the first Catholic high school in its region to operate under a co-divisional model, with boys and girls educated in a single-gender learning environment on the same campus.

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News & Events
2023-2024 St. Mary's Prep News and Events

Academic Calendar
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View 2024-2025 Calendar
St. Mary's Preparatory
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2024-2025 Calendar

Auction
Saturday, February 1st - 4:00-7:00pm
The greatest Gala on Earth
Tickets on Sale - (maestroweb.com)
READ MORE

Soaring Eaglets
Senior Ben Klingbeil is a Semifinalist for the 2025 class of the Coca-Cola Scholars
Program.
READ MORE

Athletics News
2024 -2025 Girls Division
READ MORE

OLSM Club News
2024 -2025
READ MORE

Open House
Our newly redesigned Academic Open House was a wonderful success. We welcomed 240 families to campus to meet with teachers, students, and administrators.
READ MORE

Mingle all the Way!
Sunday, November 24th, 2024
4:00 - 8:00 PM
OLSM Campus Quad
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Willow Rhodes: Art To Inspire
Prep senior Willow Rhodes is breaking boundaries in her art and inspiring others. “There are a lot of artists in my family.”
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Athletics News
2024 -2025 Boys Division
READ MORE

Personal Finance Class
September 6, 2024
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Message from the Headmaster
What an exciting time for us as Academic Year 2024-25 officially began in prayer with a Liturgy for our faculty and staff on
The Holy Day of Obligation ...
READ MORE

Christmas Concert
December 12, 2024 @ 7:00 PM
Admission: Donations for the Sr. Judie
Outreach Food Drive
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OLSM's Halloween Drive
Prep students are lifting up others in need through OLSM’s Halloween Candy Drive. Donations will help support First Step Mental Health Service. So sweet!

Congratulations!
Varsity Football Award Winners
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The Greatest Gala on Earth!
Feb 1, 2025
Read More

November 2024
Campus Communicator
View Campus Communicator
Orchard Lake St. Mary's Prep
The fire, tornado, and safety drills were conducted on the following dates:

Fire Drill
September 13, 2024, at 8:30am
St. Mary's Prep
October 22, 2024, at 1:00pm
St. Mary's Prep
November 12, 2024, at 8:30am
St. Mary's Prep
Safety Drill
October 31, 2024 at 1:00pm
St. Mary's Prep
Tornado Drill

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What is Co-Divisional?
This model offers a single-gender classroom experience alongside opportunities for boys and girls to engage socially, spiritually and in co-curricular activities. St. Mary’s prepares its students to excel in college and beyond by developing their abilities to think critically, work collaboratively, and succeed independently.

In this culture, for the first time, both boys and girls will have all of the advantages of co-educational interaction without social pressures in the classroom. With the boys and girls in separate classrooms for the majority of their instruction, students have a choice of when and how they socialize during break times, before, and after the school day ends.

Our mission and message remain the same:

1. God
2. Family
3. St. Mary's
Welcome to St. Mary's

St. Mary’s Preparatory sits on 115 acres of land located at Commerce and Orchard Lake Roads in Orchard Lake, Michigan. We are roughly 25 miles northwest of Detroit. Our Campus sits beautifully on 200 feet of shoreline on Orchard Lake. With immaculate views of Orchard Lake, we have 32 buildings on campus.
WE ARE

A Catholic, college preparatory high school with a Polish-American heritage and legacy since 1885 A.D. We exist to provide deserving students with the moral guidance, discipline, and education to become Christ-like models of service and leadership for the world.
Girls Division
Starting in the Fall semester of 2020, our historic institution will break new ground with the opening of the St. Mary's Preparatory Girls Division. This unique model will allow us to educate young women with the same Christ-like model that we have used use to educate young men for over 135 years.
Boys Division
With 135 years of Catholic Education on our campus, St. Mary's Preparatory is one of the premiere Catholic boys educational institutions in the nation.
News & Events

Academics
Athletic Events
Campus Events

SUMMER CAMPS
Gallery
Photos & videos from our past events
COVID Information

READ OUR COVID 19
BACK TO CAMPUS PLAN

OLSM HYBRID INSTRUCTION PLAN
(FRIDAY VIRTUAL DOC)

COVID 19-DASHBOARD
Hello & Welcome!
Prep School Office: 248-836-1292
School Fax: 248-683-1740
St. Mary's Preparatory is located at
3535 Commerce Rd.
Orchard Lake, MI 48324
Headmaster: Leonard Karschnia