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Quadrat Academy

222 Brown St
Philadelphia, PA 19123

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Tel: (267) 997-7744

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Quadrat Academy in Philadelphia, PA, serves 23 co–ed students in grades 6 through 12 within a nonsectarian Montessori program.

The school employs 5 teachers, maintaining a student–teacher ratio of 5:1 in a large city setting.

Approximately 26% of the student body represents students of color, reflecting some diversity in its urban community.

Quadrat Academy offers a Montessori curriculum designed for middle and high school students in Philadelphia's city locale.

The school's enrollment size and low student–teacher ratio provide an intimate educational environment compared to larger nearby Philadelphia private schools.

Quick Facts (2026)

School Type: Montessori School
Grades: 6-12
Enrollment: 23 students
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

School Overview

School Type

Montessori School

Religious Affiliation

Nonsectarian

Grades Offered

Grades 6-12

Student Body

Total Students

23 students

Student Body Type

Co-ed

% Students of Color

26%

State avg.: 27%

Students by Grade

Academics and Faculty

Total Classroom Teachers

5 teachers

Student-Teacher Ratio

5:1

National avg.: 11:1

Tuition and Acceptance Rate

Admission Deadline

None / Rolling

Source: National Center for Education Statistics (NCES)

Frequently Asked Questions

When is the application deadline for Quadrat Academy?

The application deadline for Quadrat Academy is rolling (applications are reviewed as they are received year-round).

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Quick Facts (2026)

School Type: Montessori School
Grades: 6-12
Enrollment: 23 students
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

Did You Know?

The average private school tuition in Philadelphia, PA is $12,904 for elementary schools and $18,927 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Philadelphia, PA is 77% (read more about average acceptance rates across the country).