Ontario Progressive Montessori School in Ontario, CA, enrolls 14 students in a nonsectarian Montessori program serving preschool through first grade in a midsize city community.
The school maintains a student–teacher ratio of 14:1 with one full–time teacher supporting early childhood education.
Founded with a focus on Montessori methods, the school holds membership in the American Montessori Society and other religious school associations while maintaining a nonsectarian orientation.
The student body is composed of 80% students of color, reflecting local community diversity in its early learning environment.
As a California K–1 private school, Ontario Progressive Montessori School provides education in a city setting, offering a small enrollment size suited for focused early childhood instruction.
Quick Facts (2026)
- School Type: Montessori School
- Grades: Prekindergarten-1
- Enrollment: 14 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-1
Student Body
Total Students
14 students
Student Body Type
Co-ed
% Students of Color
80%
State avg.: 51%
Students by Grade
Academics and Faculty
Total Classroom Teachers
1 teacher
Student-Teacher Ratio
14:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
When is the application deadline for Ontario Progressive Montessori School?
The application deadline for Ontario Progressive Montessori School is rolling (applications are reviewed as they are received year-round).
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The nearest high school and elementary school to Ontario Progressive Montessori School is Ontario Christian School (0.8 miles away)
The nearest preschool is Mount Zion Christian School (0.4 miles away)
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