St. Margaret School was founded as a community based school for St. Margaret Parish in the early 1900s, in a small house behind the church.
From this time forward, the education of children flourished through caring pastors, dedicated religious and lay teachers working with the supportive families of the community.
The education and experience at St. Margaret has broadened as families from the Lower Merion and surrounding community have chosen this faith based educational opportunity with academic excellence for their children.
St. Margaret students continue to be educated by the Sisters of Mercy since inception, while maintaining Middle States Accreditation offering education for pre-kindergarten through 8th grade.
Quick Stats (2025)
- Top Ranked PA School
- Grades: Prekindergarten-8
- Enrollment: 271 students
- Average class size: 24 students
- Application Deadline: Apr. 1 / May. 1 / rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
St. Margaret School ranks among the top 20% of private schools in Pennsylvania for:
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
Year Founded
1900
School Calendar
Student Body
Total Students
271 students
Student Body Type
Co-ed
% Students of Color
24%
State avg.: 27%
Students by Grade

Academics and Faculty
Total Classroom Teachers
17 teachers
Student : Teacher Ratio
16:1
National avg.: 13:1
% Faculty w/Advanced Degree
50%
Average Class Size
24 students
Classroom Dress Code
Formal
Uniforms: Khaki pants & SMS Golf Shirt for boys; Jumper Gr 1 - 4; kilt gr 5-8
Tuition and Acceptance Rate
Admission Deadline
Apr. 1 / May. 1 / rolling
Sports
Total Sports Offered
8 sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
6 extracurriculars
ExtracurricularsExtra-curric.
After School Art*, After School CARES, Before School CARES, Chorus, Kids Care Club, Student Council
School Notes
- Academics & Arts
- Honors Math Program (4th through8th Grade)
- Spanish Instruction
- Art Program
- Integrated Curriculum
- Technology K-8th
- Private Instrumental Music Instruction
- Literature Based Reading Series
- Leadership Workshop 7th & 8th Grade
- Library Science K to 4th Grade
- Optional: Chorus, Chess Club, Science Club
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
What sports does St. Margaret School offer?
St. Margaret School offers 8 interscholastic sports: Baseball, Basketball, Cheering, Cross Country, Field Hockey, Football, Lacrosse and Track and Field.
What is St. Margaret School's ranking?
St. Margaret School ranks among the top 20% of private schools in Pennsylvania for: Largest student body and Oldest founding date.
When is the application deadline for St. Margaret School?
The application deadline for St. Margaret School is Apr. 1 / May. 1 / rolling (applications are due on Apr. 1 / May. 1 but additional applications are reviewed year-round as space permits ).
School Reviews
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- Quality of academic programs, teachers, and facilities
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