Montessori School–St Clair in Belleville, IL, provides co–ed Montessori education for grades PK through K in a suburban community setting.
The school has a total enrollment of 25 students with a student–teacher ratio of 13:1 and an average class size of 15.
Founded in 1983, the school operates as a nonsectarian early learning program affiliated with the Association Montessori International (AMI).
Annual tuition is $6,100, and the school offers a summer school program to support student learning opportunities.
Located near other early childhood and elementary private schools, Montessori School–St Clair serves families seeking preschool and kindergarten education in Belleville suburbs.
Quick Facts (2025-26)
- School Type: Montessori School
- Grades: Prekindergarten-Kindergarten
- Enrollment: 25 students
- Yearly Tuition: $6,100
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: Verified school update
School Overview
School Type
School Membership(s)School Assoc.
Grades Offered
Grades Prekindergarten-Kindergarten
Year Founded
1983
Summer School Offered
Yes
School Calendar
Student Body
Total Students
25 students
Student Body Type
Co-ed
Students by Grade
Academics and Faculty
Total Classroom Teachers
2 teachers
Student-Teacher Ratio
13:1
National avg.: 13:1
Average Class Size
15 students
List of Courses Offered
Matriculation DataMatric. Data
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Application URL
School Notes
- School Motto: 'The most important period of life is not the age of university studies, but the first one – the period from birth to the age of six.'
- Vision"This is education, understood as a help to life; an education from birth, which feeds a peaceful revolution and unites all in a common aim, attracting them as to a single centre. Mothers, fathers, politicians: all must combine in their respect and help for this delicate work of formation, which the little child carries on in the depth of a profound psychological mystery, under the tutelage of an inner guide. This is the bright new hope for mankind."Dr. Maria Montessori
- The Absorbent Mind, p. 15
- Sample of notable school alumni/alumnae:
- -
Source: Verified school update
Frequently Asked Questions
How much does Montessori School-St Clair cost?
Montessori School-St Clair's tuition is approximately $6,100 for private students.
Who are famous alumni from Montessori School-St Clair?
Montessori School-St Clair famous alumni include: .
When is the application deadline for Montessori School-St Clair?
The application deadline for Montessori School-St Clair is rolling (applications are reviewed as they are received year-round).
Related Schools
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People that viewed Montessori School-St Clair also viewed these schools: Governor French Academy, Berean Christian School, Calvary Baptist Academy, First Baptist Academy and Our Lady Queen Of Peace School.
The nearest high school to Montessori School-St Clair is Berean Christian School (2.8 miles away)
The nearest elementary school is St. Teresa Catholic School (2.1 miles away)
The nearest preschool is Bekidz (true Vine Bekidz) (0.1 miles away)
Show me:
Show me:
School
Location
Miles
Quick Facts
219 West Main Street
Belleville, IL 62220
(618) 233-7542
Belleville, IL 62220
(618) 233-7542
3.3 miles
Gr: PK-12 | 107 students Avg. class size: 15 students Sports: 4 | Extracurrculars: 7 Tuition & acceptance rate listed
5100 N Illinois St
Fairview Heights, IL 62208
(618) 825-0609
Fairview Heights, IL 62208
(618) 825-0609
2.8 miles
Gr: PK-12 | 35 students Avg. class size: 10 students Tuition & acceptance rate listed
Calvary Baptist Academy
(Baptist)
423 Lucinda Ave
Belleville, IL 62221
(618) 234-3620
Belleville, IL 62221
(618) 234-3620
2.2 miles
Gr: 1-3 | 7 students
1111 E Highway 50
O Fallon, IL 62269
(618) 726-6040
O Fallon, IL 62269
(618) 726-6040
3 miles
Gr: K-12 | 281 students Avg. class size: 20 students Sports: 5 Tuition & acceptance rate listed
Our Lady Queen Of Peace School
(Catholic)
5915 N Belt W
Belleville, IL 62223
(618) 234-1206
Belleville, IL 62223
(618) 234-1206
5 miles
Gr: PK-8 | 206 students
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