Seton Montessori School has been educating children for over 50 years.
Accredited by the American Montessori Society and the National Association for the Education of Young Children, and registered with the Illinois Board of Education, the school offers all day and half day school year and summer camp programs for children from infancy through sixth grade.
Seton Montessori is a lab school for the Seton Montessori Institute, a Montessori teacher education program based in Clarendon Hills.Ill.
Quick Facts (2025-26)
- School Type: Montessori School
- Grades: Prekindergarten-6
- Enrollment: 231 students
- Application Deadline: Mar. 1 / rolling
- Source: Verified school update
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-6
ADD/ADHD Support
Yes
Year Founded
1965
Summer School Offered
Yes
School Calendar
Campus Size
7 acres
Student Body
Total Students
231 students
Student Body Type
Co-ed
% Students of Color
28%
State avg.: 34%
Students by Grade

Academics and Faculty
Total Classroom Teachers
8 teachers
Student-Teacher Ratio
29:1
National avg.: 13:1
% Faculty w/Advanced Degree
25%
List of Courses Offered
Classroom Dress Code
Casual
Tuition and Acceptance Rate
School Notes
- School Motto: Prepare children and adults to become thoughtful, effective agents for peace and progress in themselves, their communities, and the world.
Source: Verified school update
Frequently Asked Questions
When is the application deadline for Seton Montessori School?
The application deadline for Seton Montessori School is Mar. 1 / rolling (applications are due on Mar. 1 but additional applications are reviewed year-round as space permits ).
School Reviews
Endorse Seton Montessori School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles

What Private School Alumni Say a Decade Later
Ten years after graduation, private school alumni reflect on advantages, regrets, career impact, and life lessons—unearthing truths families need to know.

Can Private School Help with College Admissions?
Explore how private schools influence college admissions—advantages, limitations, and what families should expect.

Inside the Daily Life of a Private School Student
Discover what daily life is like for private school students in 2025, from classes and athletics to dining, dorms, and extracurriculars.