The Agnes Irwin School Photo #29

The Agnes Irwin School

No One Knows Girls Like Agnes Irwin. The Agnes Irwin School proudly celebrates 155 years of all-girls education and its ranking as the #1 Girls School in the Philadelphia area. AIS is a nationally recognized all-girls' independent college preparatory school for PreK-grade 12 offering a rigorous academic program, competitive sports, and diverse visual and performing arts. Our mission is to empower girls to learn, to lead, and to live a legacy.

Quick Facts (2025-26)

  • Top Ranked PA School
  • Grades: Nursery/Preschool-12
  • Enrollment: 635 students
  • Yearly Tuition: $40,950
  • Acceptance rate: 50%
  • Average class size: 15 students
  • Application Deadline: Dec. 6 / rolling
  • Source: Verified school update

Top Rankings

The Agnes Irwin School ranks among the top 20% of private schools in Pennsylvania for:

School Overview

Religious Affiliation
Grades Offered
Grades Nursery/Preschool-12
Year Founded
1869
Colors
Blue, Gold
Summer School Offered
Yes
School Calendar
Last Day of School
Fri. Jun 5, 2026

Student Body

Total Students
635 students
Student Body Type
% Students of Color
27%
State avg.: 27%
Students by Grade
The Agnes Irwin School Student By Grade

Academics and Faculty

Total Classroom Teachers
123 teachers
Student-Teacher Ratio
5:1
National avg.: 13:1
% Faculty w/Advanced Degree
69%
Average Class Size
15 students
List of Courses Offered
Average SAT score
1330
(Out of 1600)
Average ACT score
31
(Out of 36)
Matriculation DataMatric. Data
Classroom Dress Code
Formal
uniform

Tuition and Acceptance Rate

Admission Deadline
Dec. 6 / rolling
Yearly Tuition Cost
Tuition Notes
Tuitions vary by grade/division, starting at $25,000 for PK and ending with Upper School at $46,250. No additional required fees.
% on Financial Aid
32%
Average Financial Aid Grant
$22,000
Acceptance Rate
50%
National avg.: 81%
College Acceptance Rate
100%
Admissions Director
Allison Price

Sports

School Notes

  • School Motto: Empowering Girls Since 1869
  • School Mascot: Gus The Owl
  • The Agnes Irwin School (AIS) was founded 155 years ago by MIss Agnes Irwin, a woman of unmistakable character, born of her determination and vision to shape girls'education in a path-breaking way for her time. Today, AIS is one of the country's oldest, continuously operating, non-sectarian all-girls PreK-12 college preparatory schools, known for providing girls and young women with challenging academics in a nurturing environment.
Source: Verified school update

Frequently Asked Questions

How much does The Agnes Irwin School cost?
The Agnes Irwin School's tuition is approximately $40,950 for private students.
What is the acceptance rate of The Agnes Irwin School?
The acceptance rate of The Agnes Irwin School is 50%, which is lower than the national average of 81%. The Agnes Irwin School's acceptance rate is ranked among the top private schools in Pennsylvania with low acceptance rates.
What sports does The Agnes Irwin School offer?
The Agnes Irwin School offers 14 interscholastic sports: Basketball, Crew, Cross Country, Diving, Field Hockey, Golf, Lacrosse, Soccer, Softball, Squash, Swimming, Tennis, Track and Field and Volleyball. The Agnes Irwin School is ranked as one of the top 20% of private schools in Pennsylvania for most sports offered.
What is The Agnes Irwin School's ranking?
The Agnes Irwin School ranks among the top 20% of private schools in Pennsylvania for: Highest average SAT score, Highest average ACT score, Lowest average acceptance rates, Largest student body, Most sports offered and Oldest founding date.
When is the application deadline for The Agnes Irwin School?
The application deadline for The Agnes Irwin School is Dec. 6 / rolling (applications are due on Dec. 6 but additional applications are reviewed year-round as space permits ).

School Reviews

  5.00 out of 5  (3 reviews)
5  
We recently joined AIS from another top-ranked all-girls private school in the Mainline area and our experience has completely exceeded our expectations! AIS is an incredibly positive and empowering school for my daughters and their academics are absolutely outstanding! Our daughters are thriving and excelling beyond our wildest dreams and they teach the girls how to lead with empathy and kindness. My daughter was bullied mercilessly at her former school, but at AIS they have absolutely no tolerance for bullying or unkind behavior whatsoever. If you are seeking a school that fosters a positive, happy learning environment as well as superior academics, AIS is the school for you.
- Posted by
5  
My girls love this school and jump out of the car each morning excited to see their teachers and friends. AIS has the perfect balance of a nurturing environment and excellent education.
- Posted by
5  
I have a few daughters at this school and am constantly amazed at the warmth and endless support from the faculty. Each teacher goes above and beyond to help educate my girls in the best way possible to their individual needs and learning styles. I see my girls developing into intelligent, kind, mindful, thoughtful and happy girls. I attribute this development to this amazing school.
- Posted by

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Quick Facts (2025-26)

  • Top Ranked PA School
  • Grades: Nursery/Preschool-12
  • Enrollment: 635 students
  • Yearly Tuition: $40,950
  • Acceptance rate: 50%
  • Average class size: 15 students
  • Application Deadline: Dec. 6 / rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Bryn Mawr, PA is $32,814 for elementary schools and $35,995 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Bryn Mawr, PA is 74% (read more about average acceptance rates across the country).

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