St Margaret Mary Catholic School was established through the efforts of Fr. Richard Maher, over 45 years ago.
His vision was to provide children with quality education in both the Catholic faith and academic studies.
St. Margaret Mary School's goal is to enable children to live in today's ever-changing world and prepare them to face the challenges of society.
St. Margaret Mary School provides Catholic education for students, preschool through eighth grade, within the Chino, California area.
With teachers as facilitators of learning, we provide a quality education with emphasis on growth in all individual and social dimensions: social, moral, intellectual, cultural, emotional, and physical.
St. Margaret Mary Catholic School admits students of any race, color and national or ethnic origin, and does not discriminate on the basis of sex in its admission policies and employment practices.
Quick Stats (2025)
- Top Ranked CA School
- Grades: Prekindergarten-8
- Enrollment: 270 students
- Yearly Tuition: $5,100
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Margaret Mary School ranks among the top 20% of private schools in California for:
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
School Calendar
Student Body
Total Students
270 students
Student Body Type
Co-ed
% Students of Color
77%
State avg.: 51%
Students by Grade

Academics and Faculty
Total Classroom Teachers
12 teachers
Student : Teacher Ratio
23:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Application URL
School Notes
- St Margaret Mary Catholic School was established through the efforts of Fr. Richard Maher, over 45 years ago. His vision was to provide children with quality education in both the Catholic faith and academic studies. St. Margaret Mary School's goal is to enable children to live in today's ever-changing world and prepare them to face the challenges of society. St. Margaret Mary School provides Catholic education for students, preschool through eighth grade, within the Chino, California area. With teachers as facilitators of learning, we provide a quality education with emphasis on growth in all individual and social dimensions: social, moral, intellectual, cultural, emotional, and physical. St. Margaret Mary Catholic School admits students of any race, color and national or ethnic origin, and does not discriminate on the basis of sex in its admission policies and employment practices.
Source: Verified school update
Frequently Asked Questions
How much does St. Margaret Mary School cost?
St. Margaret Mary School's tuition is approximately $5,100 for private students.
What is St. Margaret Mary School's ranking?
St. Margaret Mary School ranks among the top 20% of private schools in California for: Least expensive tuition and Largest student body.
When is the application deadline for St. Margaret Mary School?
The application deadline for St. Margaret Mary School is rolling (applications are reviewed as they are received year-round).
School Reviews
5 4/8/2020
This school is super!!! All three of my children attended SMMS and received an excellent education. If you want a highly academic school, then this is a good one. The curriculum is rigorous but all the teachers are very supportive and stay every day after school for free tutoring. The kids enjoyed all the activities offered. The principal is nice and does not put up with bullying. It's a strict school which I liked. They have rules and expect the students to abide by them.
5 1/27/2020
Saint Margaret Mary School is an excellent school. All my children attended there and received a great education. The faculty is awesome! They teach with a caring attitude. Their sports program is also very good. They offer a wide variety of sports for all levels. They encourage all students to participate!
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