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St. Mark Christian School Photo #6

St. Mark Christian School

15w455 79th street
Willowbrook, IL 60527
St. Mark Christian School provides a unique educational experience rooted in Christian values focusing on the Montessori method in the early years and a Classical approach in the primary years.
It is our belief that a competitive education along with a solid spiritual formation is what will help all our children thrive in this changing world.
Our goal is to cultivate a love for learning and a love for God through a Christian Montessori and Classical education.
Our programs: Elementary, Kindergarten, Preschool, Infants & Toddlers  We offer full day and half days for our Infant & Toddler, Preschool, and the Kindergarten Program.

Quick Facts (2026)

  • School Type: Montessori School
  • Grades: Nursery/Preschool-5
  • Enrollment: 67 students
  • Average class size: 8 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

School Overview

School Type
Religious Affiliation
Grades Offered
Grades Nursery/Preschool-5
Year Founded
2003
Summer School Offered
Yes
School Calendar
Campus Size
10 acres

Student Body

Total Students
67 students
Student Body Type
Co-ed
Students by Grade

Academics and Faculty

Total Classroom Teachers
15 teachers
Student-Teacher Ratio
4:1
National avg.:
Average Class Size
8 students
Classroom Dress Code
Casual
Uniform - Grades 1-5

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Application URL

Sports

Total Sports Offered
5 sports

Extracurriculars

Total ExtracurricularsTotal Extra-curric.
8 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
Art ClubChess
Games ClubRobotics Classes
Science ClubSports Club


Arts and Music Programs:
Art ClassesMusic Class

School Notes

  • School Motto: Building Strong Foundations for the Future
  • School Mascot: Lions
  • St. Mark Christian School provides a unique educational experience rooted in Christian values focusing on the Montessori method in the early years and a Classical approach in the primary years.
  • It is our belief that a competitive education along with a solid spiritual formation is what will help all our children thrive in this changing world.
  • Our goal is to cultivate a love for learning and a love for God through a Christian Montessori and Classical education.
  • Our programs: Elementary, Kindergarten, Preschool, Infants & Toddlers
  • We offer full day and half days for our Infant & Toddler, Preschool, and the Kindergarten Program.
Source: Verified school update

Frequently Asked Questions

What sports does St. Mark Christian School offer?
St. Mark Christian School offers 5 interscholastic sports: Dance, Gymnastics, Indoor Soccer, Martial Arts and Soccer.
When is the application deadline for St. Mark Christian School?
The application deadline for St. Mark Christian School is rolling (applications are reviewed as they are received year-round).

School Reviews

  5.00 out of 5  (2 reviews)
5  
We love St. Mark! You truly feel like you are part of a family. The curriculum is engaging, challenging and fun. My children have all gone here and they are excelling now as teenagers because of the foundation that was set here in their early years. The teachers are highly educated, enthusiastic and above all love the children as their own. The fact that they instill a love for Christ in all they do is just another reason on top of their amazing academic program.
- Posted by
5  
This school is amazing! My daughter was placed in advanced math in first grade and was able to read fluently. Their program is so advancing but at the same time well-tailored to meet every individual child's needs. We highly recommend this school to anyone looking for a wonderful community to join.
- Posted by

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Quick Facts (2026)

  • School Type: Montessori School
  • Grades: Nursery/Preschool-5
  • Enrollment: 67 students
  • Average class size: 8 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Dupage County, IL is $10,889 for elementary schools and $16,898 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Dupage County, IL is 86% (read more about average acceptance rates across the country).

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