St. Margaret Mary School provides a quality education within a Catholic, Christian atmosphere through a holistic approach that prepares the students for spiritual growth, social responsibility, and academic success.
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.
We believe that through our student-centered learning environment, students will learn to become responsible for their actions, treat others with respect and dignity, attain their academic potential, and accept themselves as children of God.
It is the purpose of St. Margaret Mary School to encourage one another to accept the differences we find in our diverse community.
We recognize that everyone is created in the image and likeness of God, and we strive to teach as Jesus did.
Quick Facts (2025-26)
- Top Ranked CA School
- Grades: Nursery/Preschool-8
- Enrollment: 362 students
- Yearly Tuition: $7,200
- Acceptance rate: 95%
- Average class size: 33 students
- Application Deadline: Aug. 19
- Source: Verified school update
Top Rankings
St. Margaret Mary School ranks among the top 20% of private schools in California for:
Category
Attribute
Advanced Degrees
Student Body
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Nursery/Preschool-8
ADD/ADHD Support
Yes
Learning Difference Programs
Yes
Year Founded
1954
School Calendar
Student Body
Total Students
362 students
Student Body Type
Co-ed
% Students of Color
99%
State avg.: 51%
Students by Grade
Academics and Faculty
Total Classroom Teachers
21 teachers
Student-Teacher Ratio
17:1
National avg.: 13:1
% Faculty w/Advanced Degree
90%
Average Class Size
33 students
Classroom Dress Code
Casual
uniform
Tuition and Acceptance Rate
Admission Deadline
Aug. 19
Yearly Tuition Cost
Tuition Notes
Registered/Contributing Rate is $6420
Acceptance Rate
95%
National avg.: 81%
Application URL
Sports
Total Sports Offered
6 sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
3 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
ChoirDrama Club
Robotics Club
School Notes
- School Motto: Combining Excellent Academics with a Christ-Centered, Family-Valued Environment.
- School Mascot: Panther
Source: Verified school update
Frequently Asked Questions
How much does St. Margaret Mary School cost?
St. Margaret Mary School's tuition is approximately $7,200 for private students.
What is the acceptance rate of St. Margaret Mary School?
The acceptance rate of St. Margaret Mary School is 95%, which is higher than the national average of 80%.
What sports does St. Margaret Mary School offer?
St. Margaret Mary School offers 6 interscholastic sports: Basketball, Cross Country, Flag Football, Soccer, Track and Field and Volleyball.
What is St. Margaret Mary School's ranking?
St. Margaret Mary School ranks among the top 20% of private schools in California for: Highest percentage of students of color, Highest percentage of faculty with advanced degrees and Largest student body.
When is the application deadline for St. Margaret Mary School?
The application deadline for St. Margaret Mary School is Aug. 19.
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People that viewed St. Margaret Mary School also viewed these schools: St. Edward Catholic School, St. George Parish School, Our Lady Queen Of Angels School, Our Lady Of Lourdes School and Our Lady Of The Assumption School.
The nearest high school to St. Margaret Mary School is Orion International Academy (1.6 miles away)
The nearest elementary school is Montessori Academy Of Chino (1.0 miles away)
The nearest preschool is Chino Montessori School (1.0 miles away)
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Location
Miles
Quick Facts
500 S Merrill St
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(951) 737-2530
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Ontario, CA 91762
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Gr: K-8 | 404 students Avg. class size: 24 students Sports: 12 | Extracurrculars: 4 Tuition listed
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