OakHaven Montessori School is an authentic, private Montessori school in O'Fallon, MO. Our strong community is dedicated to giving each child the very best education for life.
We offer beautiful, natural, hands-on learning environments for children ages 2.5 through 12.
Quick Stats (2025)
- Top Ranked MO School
- School Type: Montessori School
- Grades: Prekindergarten-6
- Enrollment: 83 students
- Average class size: 22 students
- Application Deadline: Mar. 1 / Jun. 15 / rolling
- Source: Verified school update
Top Rankings
OakHaven Montessori School ranks among the top 20% of private schools in Missouri for:
Category
Attribute
Advanced Degrees
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-6
Year Founded
2008
Summer School Offered
Yes
Summer Program Details
First Day of School
Mon. Sep 1, 2025
Last Day of School
Mon. May 25, 2026
Student Body
Total Students
83 students
Student Body Type
Co-ed
% Students of Color
10%
State avg.: 20%
Students by Grade

Academics and Faculty
Total Classroom Teachers
8 teachers
Student : Teacher Ratio
10:1
National avg.: 13:1
% Faculty w/Advanced Degree
83%
Average Class Size
22 students
Classroom Dress Code
Casual
Uniform shirts
Tuition and Acceptance Rate
Admission Deadline
Mar. 1 / Jun. 15 / rolling
Tuition Notes
Tuition varies depending on program selection
Admissions Director
April Powell
Admissions Associate
Shannon Troupe
Application URL
Sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
5 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
Lego Club
Arts and Music Programs:
Art, Music Lessons
Recreational Athletic Programs:
Soccer Shots, Yoga
Lego Club
Arts and Music Programs:
Art, Music Lessons
Recreational Athletic Programs:
Soccer Shots, Yoga
School Notes
- School Mascot: Montessori Owl
- Set on four acres of scenic, park-like grounds, OakHaven Montessori School provides children with a hands-on education from pre-school through 6th grade. The nurturing and holistic environment reflects the spirit of every staff member here. Each child is respected as an individual as they grow and learn interdependence with all of life.
- Exceptional education in a beautiful environment makes OakHaven Montessori School a place where each child can find their own unique gifts and excel. We are fully recognized by the Association Montessori Internationale and offer authentic Montessori education in a warm and loving community.
Source: Verified school update
Frequently Asked Questions
Does OakHaven Montessori School offer a summer program?
Yes, OakHaven Montessori School offers a summer program. Visit their summer school page for more information.
What sports does OakHaven Montessori School offer?
OakHaven Montessori School offers 2 interscholastic sports: Dance and Soccer.
What is OakHaven Montessori School's ranking?
OakHaven Montessori School ranks among the top 20% of private schools in Missouri for: Highest percentage of faculty with advanced degrees.
When is the application deadline for OakHaven Montessori School?
The application deadline for OakHaven Montessori School is Mar. 1 / Jun. 15 / rolling (applications are due on Mar. 1 / Jun. 15 but additional applications are reviewed year-round as space permits ).
School Reviews
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