Private School Review - Established 2003
The Baldwin School Photo - Girls sometimes learn that the effect they predicted on paper isn't always what happens in the test tube, and that rethinking a reaction-- or learning about the world and coming up with a smart, new prediction-- is the real solution.
The Baldwin School

Best Pennsylvania Private High Schools Belonging to Pennsylvania Association of Independent Schools (PAIS) (2025)

For the 2025 school year, there are 46 private high schools belonging to Pennsylvania Association of Independent Schools (PAIS) serving 22,041 students in Pennsylvania. You can also find more schools membership associations in Pennsylvania.
The top ranked private high schools belonging to Pennsylvania Association of Independent Schools (PAIS) in Pennsylvania include The Agnes Irwin School, Mercersburg Academy, and Shady Side Academy.
The average tuition cost is $37,012, which is higher than the Pennsylvania private high school average tuition cost of $18,992.
39% of private high schools belonging to Pennsylvania Association of Independent Schools (PAIS) in Pennsylvania are religiously affiliated (most commonly Catholic and Friends).

Top Ranked Private High Schools Belonging to Pennsylvania Association of Independent Schools (PAIS) in Pennsylvania (2025)

School
Location
Quick Facts
Abington Friends School
Abington Friends School Photo
(Friends)
(3)
575 Washington Ln
Jenkintown, PA 19046
(215) 576-3950
Gr: PK-12 | 604 students Avg. class size: 13 students Sports: 13 | Extracurrculars: 19 Tuition & acceptance rate listed
AIM Academy
AIM Academy Photo - MEETING LEARNING CHALLENGES WITH SCIENCE & LOVE: AT AIM, we recognize that children who learn differently need to be taught differently - and that's exactly what we do. Our passionately committed, highly-trained faculty employ techniques proven effective, and the results are remarkable. Each day we witness young people who doubted themselves in every way discover the gift of fearless learning.
Special Education School
(5)
1200 River Road
Conshohocken, PA 19428
(215) 483-2461
Gr: 1-12 | 397 students Sports: 7 | Extracurrculars: 19 Tuition listed
The Church Farm School
The Church Farm School Photo - Church Farm School recently underwent a $15M campus modernization project, creating new student learning spaces, a Center for the Arts and a more accessible campus.
All-boys (Episcopal)
1001 E Lincoln Hwy
Exton, PA 19341
(610) 363-7500
Gr: 9-12 | 147 students Avg. class size: 10 students Sports: 11 | Extracurrculars: 20 Tuition & acceptance rate listed
The Crefeld School
The Crefeld School Photo - Middle School Science
(5)
8836 Crefeld Street
Philadelphia, PA 19118
(215) 242-5545
Gr: 7-12 | 91 students Avg. class size: 10 students Sports: 2 | Extracurrculars: 13 Tuition & acceptance rate listed
Delaware Valley Friends School
Delaware Valley Friends School Photo - Delaware Valley Friends School is a national leader in the field of educating students (grades 1-12) with dyslexia, dysgraphia, executive function disorders, ADHD, and other learning differences located in the Philadelphia area.
Special Education School (Friends)
(10)
19 E Central Ave
Paoli, PA 19301
(610) 640-4150
Gr: 1-12 | 207 students Avg. class size: 8 students Sports: 8 | Extracurrculars: 21 Tuition & acceptance rate listed
Germantown Academy
Germantown Academy Photo - Second grade students research various species in the Wissahickon Creek, which runs through the heart of GA's campus.
(5)
340 Morris Rd
Fort Washington, PA 19034
(267) 405-7070
Gr: PK-12 | 1,223 student Avg. class size: 17 students Sports: 20 | Extracurrculars: 29 Tuition & acceptance rate listed
Kimberton Waldorf School
Kimberton Waldorf School Photo
(5)
410 W Seven Stars Rd
Phoenixville, PA 19460
(610) 933-3635
Gr: PK-12 | 240 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 4 Tuition & acceptance rate listed
Merion Mercy Academy
Merion Mercy Academy Photo
All-girls (Catholic)
511 Montgomery Ave
Merion Station, PA 19066
(610) 664-6655
Gr: 9-12 | 435 students Avg. class size: 16 students Sports: 14 | Extracurrculars: 47 Tuition listed
Milton Hershey School
Milton Hershey School Photo - At Milton Hershey School, our founders' generosity and vision have enabled us to develop and maintain a whole child approach to education and programming that comes at no cost to our students or their families.
Alternative School
(2)
1201 Homestead Ln
Hershey, PA 17033
(800) 322-3248
Gr: PK-12 | 2,189 students Avg. class size: 15 students Sports: 15 | Extracurrculars: 46 Tuition listed
Westtown School
Westtown School Photo - The Westtown School campus includes 600 acres of land, a 14-acre lake with a beach and boathouse, and an arboretum and natural forest.
(Friends)
(10)
975 Westtown Road
West Chester, PA 19382
(610) 399-7900
Gr: PK-12 | 665 students Avg. class size: 15 students Sports: 19 | Extracurrculars: 61 Tuition & acceptance rate listed
The Phelps School
The Phelps School Photo
All-boys
(11)
583 Sugartown Road
Malvern, PA 19355
(610) 644-1754
Gr: 6-12 | 89 students Avg. class size: 7 students Sports: 7 | Extracurrculars: 7 Tuition listed
The Agnes Irwin School
The Agnes Irwin School Photo
All-girls
(3)
275 S Ithan Ave
Bryn Mawr, PA 19010
(610) 801-1869
Gr: NS-12 | 635 students Avg. class size: 15 students Sports: 14 Tuition & acceptance rate listed
Aquinas Academy
Aquinas Academy Photo
(Catholic)
2308 West Hardies Road
Pittsburgh, PA 15044
(724) 444-0722
Gr: NS-12 | 537 students Avg. class size: 16 students Sports: 12 | Extracurrculars: 26 Tuition & acceptance rate listed
The Baldwin School
The Baldwin School Photo - Girls sometimes learn that the effect they predicted on paper isn't always what happens in the test tube, and that rethinking a reaction-- or learning about the world and coming up with a smart, new prediction-- is the real solution.
All-girls
(2)
701 Montgomery Avenue
Bryn Mawr, PA 19010
(610) 525-2700
Gr: PK-12 | 566 students Sports: 14 Tuition listed
Devon Preparatory School
Devon Preparatory School Photo - Each year members of Devon Prep's Christian Action Program (CAP) collects and delivers thousands of food items to an inner city community center for Thanksgiving.
All-boys (Catholic)
(3)
363 N. Valley Forge Road
Devon, PA 19333
(610) 688-7337
Gr: 6-12 | 325 students Avg. class size: 14 students Sports: 16 | Extracurrculars: 24 Tuition listed
The Ellis School
The Ellis School Photo
All-girls
(18)
6425 Fifth Avenue
Pittsburgh, PA 15206
(412) 661-5992
Gr: PK-12 | 403 students Avg. class size: 12 students Sports: 10 Tuition & acceptance rate listed
Germantown Friends School
Germantown Friends School Photo
(Friends)
31 W Coulter Street
Philadelphia, PA 19144
(215) 951-2300
Gr: NS-12 | 1,157 student Sports: 14 | Extracurrculars: 74 Tuition listed
Girard College
Girard College Photo - Founder's Hall
(2)
2101 S College Ave
Philadelphia, PA 19121
(215) 787-2621
Gr: 1-12 | 319 students Avg. class size: 14 students Sports: 13 | Extracurrculars: 9 Tuition & acceptance rate listed
The Grayson School
The Grayson School Photo - RADNOR, Pa., May 27, 2021 /PRNewswire/ -- The Board of Trustees of The Grayson School are pleased to announce that the school has been granted accreditation by the Pennsylvania Association of Independent Schools (PAIS) for ten years-an unprecedented term for a young school in their initial application year.
Special Program Emphasis
211 Matsonford Road
Wayne, PA 19087
(484) 428-3241
Gr: PK-12 | 164 students Sports: 6 | Extracurrculars: 14 Tuition listed
Gwynedd Mercy Academy High School
Gwynedd Mercy Academy High School Photo
All-girls (Catholic)
1345 Sumneytown Pike
Ambler, PA 19002
(215) 646-8815
Gr: 9-12 | 454 students Avg. class size: 18 students Sports: 15 | Extracurrculars: 24 Tuition listed
Harrisburg Academy
Harrisburg Academy Photo - Upper School Students take a moment to discuss the period's lecture.
(6)
10 Erford Road
Lemoyne, PA 17043
(717) 763-7811
Gr: NS-12 | 356 students Avg. class size: 15 students Sports: 7 | Extracurrculars: 12 Tuition & acceptance rate listed
The Haverford School
The Haverford School Photo - Haverford's visual arts program includes 10 dedicated art studios and a design and engineering studio. Students experiment with 3D printing and other new media.
All-boys
(1)
450 Lancaster Ave.
Haverford, PA 19041
(610) 642-3020
Gr: PK-12 | 943 students Avg. class size: 16 students Sports: 18 | Extracurrculars: 34 Tuition & acceptance rate listed
Holy Ghost Prep
All-boys (Catholic)
(1)
2429 Bristol Pike
Bensalem, PA 19020
(215) 639-2102
Gr: 9-12 | 419 students Sports: 16 Tuition & acceptance rate listed
Jack M Barrack Hebrew Academy
Jack M Barrack Hebrew Academy Photo
Special Program Emphasis (Jewish)
(11)
272 S Bryn Mawr Ave
Bryn Mawr, PA 19010
(610) 922-2347
Gr: 6-12 | 346 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 14 Tuition listed
The Janus School
The Janus School Photo - The Janus School
Special Education School
205 Lefever Road
Mount Joy, PA 17552
(717) 653-0025
Gr: K-12 | 61 students Avg. class size: 5 students Sports: 1 | Extracurrculars: 3 Tuition listed
The Kiski School
The Kiski School Photo - Beginning in 2024, Kiski will offer co-education, extending our outstanding opportunities and unique educational environment to both girls and boys.
1888 Brett Ln
Saltsburg, PA 15681
(724) 639-8035
Gr: 9-12 | 200 students Avg. class size: 10 students Sports: 12 | Extracurrculars: 19 Tuition listed
Lancaster Country Day School
Lancaster Country Day School Photo
(1)
725 Hamilton Road
Lancaster, PA 17603
(717) 392-2916
Gr: PK-12 | 568 students Avg. class size: 12 students Sports: 15 Acceptance rate listed
Linden Hall
Linden Hall Photo - Students enjoying a walk around our beautiful campus in the springtime.
All-girls
(3)
212 E Main St
Lititz, PA 17543
(717) 626-8512
Gr: 6-12 | 93 students Avg. class size: 8 students Sports: 16 | Extracurrculars: 17 Tuition & acceptance rate listed
Malvern Preparatory School
Malvern Preparatory School Photo
All-boys (Catholic)
418 S. Warren Avenue
Malvern, PA 19355
(484) 595-1100
Gr: 6-12 | 675 students Avg. class size: 15 students Sports: 18 Tuition & acceptance rate listed
Mercersburg Academy
Mercersburg Academy Photo
100 Academy Drive
Mercersburg, PA 17236
(717) 328-6173
Gr: 9-12 | 452 students Avg. class size: 12 students Sports: 25 Tuition & acceptance rate listed
MMI Preparatory School
MMI Preparatory School Photo - MMI Preparatory School Campus
Special Program Emphasis
154 Centre St
Freeland, PA 18224
(570) 636-1108
Gr: 6-12 | 209 students Avg. class size: 16 students Sports: 8 | Extracurrculars: 18 Tuition & acceptance rate listed
Sacred Heart Academy Bryn Mawr
Sacred Heart Academy Bryn Mawr Photo - Sacred Heart Academy Bryn Mawr is a Catholic, independent college preparatory school for girls K-12, founded in 1865 by the Religious of the Sacred Heart of Jesus. Known as SHA, the private girls' school is located in PA outside of Philadelphia with elementary, middle and upper school divisions located on one campus.
All-girls (Catholic)
480 S Bryn Mawr Ave
Bryn Mawr, PA 19010
(610) 527-3915
Gr: PK-12 | 179 students Avg. class size: 8 students Sports: 11 | Extracurrculars: 25 Tuition & acceptance rate listed
Sewickley Academy
Sewickley Academy Photo - For Who You Are. For Who You Will Become.
(10)
315 Academy Avenue
Sewickley, PA 15143
(412) 741-2230
Gr: PK-12 | 532 students Avg. class size: 15 students Sports: 15 Tuition & acceptance rate listed
Shady Side Academy
Shady Side Academy Photo - Shady Side Academy Senior School resides on a 130- acre campus which offers incredible facilities and resources that enable students to fuel their passions. Advanced level courses, teachers that motivate and support, and a college-like campus all help to prepare students for college and beyond.
(3)
423 Fox Chapel Road
Pittsburgh, PA 15238
(412) 968-3179
Gr: PK-12 | 1,221 student Avg. class size: 15 students Sports: 20 | Extracurrculars: 58 Tuition & acceptance rate listed
The Shipley School
The Shipley School Photo - Shipley Upper School
(5)
814 Yarrow Street
Bryn Mawr, PA 19010
(610) 525-4300
Gr: PK-12 | 660 students Avg. class size: 14 students Sports: 15 | Extracurrculars: 22 Tuition & acceptance rate listed
Show 11 more private schools in Pennsylvania (out of 46 total schools)
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