Who We Are
Welcome to St. Mark School where we learn and bring Christ to the world. As a Catholic School in Catonsville, Maryland our mission is to foster Christian values of service and personal responsibility in an environment of respect and compassion for others in the tradition of the Catholic Church.
We strive to instill self-confidence, intellectual curiosity, and strong academic performance through instruction based on the strengths of students’ various learning styles.
Fast Facts About St. Mark School
Student-Teacher Ratio
Student Enrollment PreK-3 - Grade 8
Scholarships Awarded to Class of 2024
Years of Academic Excellence
Admissions Update | 2026–2027 School Year
We are grateful for the strong interest in St. Mark School for the 2026–2027 academic year. At this time, our PreK 3 class is full, and we are no longer accepting applications for prospective kindergarten students for the upcoming school year.
St. Mark School News
Join Us for St. Mark School’s Winter Open House!
Join Us for St. Mark School’s Winter Open House!
Celebrate 135 years of Christ-centered education and discover what makes St. Mark a community rooted in faith, learning, and tradition. Visit us on Sunday, January 25th, 2025, from 10:30 AM to 12:00 PM to meet our faculty, tour the campus, and learn more about our programs. Click here to register today!
Holiday Take a Tour Thursday!
Thursday, December 11th at 9:00-10:30 AM Join us at our next Take a Tour Thursday! Come stop by for a tour led by our student ambassadors. See the classes in action, meet the teachers and staff, and...
Pope Leo XIV Livestream this Friday!
On Friday, November 21 at 10:15 ET, Pope Leo XIV will speak directly with teens gathered at Lucas Oil Stadium in Indianapolis, along with thousands of students joining by livestream from schools and...

