St. Mark Catholic School in South County is a place where students can feel at home. Our teachers provide children in preschool through 8th grade a nurturing atmosphere with the opportunity to learn, serve, and grow in a welcoming spiritual environment. In addition to our academics, we offer a creative list of extracurriculars to enhance a child's classroom learning and leadership skills.
Call us to schedule a visit and offer us the opportunity to say, "Welcome Home!".

Quick Stats (2022)

  • Grades: Prekindergarten-8
  • Students: 165 students
  • Yearly Tuition: $5,748
  • Average class size: 18 students
  • Application Deadline: None / Rolling

School Overview

School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
ADD/ADHD Support
Year Founded

Student Body

Total Students
165 students
Student Body Type
% Students of Color
State avg.: 18%
Students by Grade
St. Mark School Student By Grade

Academics and Faculty

Total Classroom Teachers
15 teachers
Student : Teacher Ratio
National avg.: 13:1
Average Class Size
18 students

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
We offer differ tuition rates for multiple children
% on Financial Aid
Admissions Director
Julie Bingham
Admissions Associate
Debbie Greubel


Total Sports Offered
6 sports


Total ExtracurricularsTotal Extra-curric.
13 extracurriculars
Club or Organization:
Academic Team, Altar Servers, Boy Scouts, Girl Scouts, National Junior Honor Society, Robotics, Speech Team, Student Ambassadors, Student Council

Arts and Music Programs:
Band, Middle School Musical

Recreational Athletic Programs:
Middle School Workout, Read Right and Run

School Notes

  • At St. Mark, we believe each child is unique and formed in the image and likeness of God.  We are dedicated to educating our students to become respectful, responsible Christians who go forth to serve.
  • Students can explore, enjoy, and learn in our hands-on STREAM lab and outdoor classroom.
  • We offer curriculum flexibility to meet the needs of every child and many co-curriculars to enhance the learning experience. 
  • We offer high school preparation.
  • Our students participate in monthly community service projects.
  • We have a full-time learning consultant.
  • We offer on-site before/after school care programs. 

School Reviews

St. Mark was my home away from home. I was well prepared for high school and loved my 9 years at St. Mark.
- Posted by

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Quick Stats (2022)

  • Grades: Prekindergarten-8
  • Students: 165 students
  • Yearly Tuition: $5,748
  • Average class size: 18 students
  • Application Deadline: None / Rolling

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Did You Know?

The average private school tuition in Saint Louis, MO is $15,134 for elementary schools and $16,845 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Saint Louis, MO is 82% (read more about average acceptance rates across the country).

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