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Best Pennsylvania Private High Schools Belonging to National Association of Independent Schools (NAIS) (2026)

For the 2026 school year, there are 57 private high schools belonging to National Association of Independent Schools (NAIS) serving 27,195 students in Pennsylvania. You can also find more schools membership associations in Pennsylvania.
The top ranked private high schools belonging to National Association of Independent Schools (NAIS) in Pennsylvania include Mercersburg Academy, The Haverford School, and Grier School.
The average tuition cost is $38,712, which is higher than the Pennsylvania private high school average tuition cost of $19,283.
46% of private high schools belonging to National Association of Independent Schools (NAIS) in Pennsylvania are religiously affiliated (most commonly Catholic and Friends).

Quick Facts (2026)

  • # Private Schools: 57

Quick Facts (2026)

  • # Private Schools: 57

Top Ranked Private High Schools Belonging to National Association of Independent Schools (NAIS) in Pennsylvania (2026)

Abington Friends School Photo
Abington Friends School
Gr: PK-12 | 604 students
Avg. class size: 13 students
Sports: 13 | Extracurriculars: 19
Friends
575 Washington Ln
Jenkintown, PA 19046
(215) 576-3950
(3)
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AIM Academy Photo
AIM Academy
Gr: 1-12 | 397 students
Sports: 7 | Extracurriculars: 19
Special Education School
1200 River Road
Conshohocken, PA 19428
(215) 483-2461
(5)
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The Crefeld School Photo
The Crefeld School
Gr: 7-12 | 89 students
Avg. class size: 10 students
Sports: 3 | Extracurriculars: 14
8836 Crefeld Street
Philadelphia, PA 19118
(215) 242-5545
(5)
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Cristo Rey Philadelphia High School Photo
Cristo Rey Philadelphia High School
Gr: 9-12 | 522 students
Avg. class size: 25 students
Sports: 11 | Extracurriculars: 20
Catholic
1717 W. Allegheny Ave.
Philadelphia, PA 19132
(215) 219-3943
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Delaware Valley Friends School Photo
Delaware Valley Friends School
Gr: 1-12 | 207 students
Avg. class size: 8 students
Sports: 8 | Extracurriculars: 21
Special Education School (Friends)
19 E Central Ave
Paoli, PA 19301
(610) 640-4150
(11)
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Germantown Academy Photo
Germantown Academy
Gr: PK-12 | 1,225 students
Avg. class size: 17 students
Sports: 20 | Extracurriculars: 29
340 Morris Rd
Fort Washington, PA 19034
(267) 405-7070
(5)
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Kimberton Waldorf School Photo
Kimberton Waldorf School
Gr: PK-12 | 240 students
Avg. class size: 15 students
Sports: 6 | Extracurriculars: 4
410 W Seven Stars Rd
Phoenixville, PA 19460
(610) 933-3635
(5)
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Milton Hershey School Photo
Milton Hershey School
Gr: PK-12 | 2,189 students
Avg. class size: 15 students
Sports: 15 | Extracurriculars: 46
Alternative School
1201 Homestead Ln
Hershey, PA 17033
(800) 322-3248
(2)
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Westtown School Photo
Westtown School
Gr: PK-12 | 693 students
Avg. class size: 15 students
Sports: 19 | Extracurriculars: 61
Friends
975 Westtown Road
West Chester, PA 19382
(610) 399-7900
(10)
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The Phelps School Photo
The Phelps School
Gr: 6-12 | 89 students
Avg. class size: 7 students
Sports: 7 | Extracurriculars: 7
All-boys
583 Sugartown Road
Malvern, PA 19355
(610) 644-1754
(11)
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Academy Of The New Church Secondary Schools Photo
Academy Of The New Church Secondary Schools
Gr: 9-12 | 190 students
Avg. class size: 13 students
Sports: 12 | Extracurriculars: 11
2815 Benade Cir
Bryn Athyn, PA 19009
(267) 502-2500
(5)
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Map of Academy-notre Dame De Namur
Academy-notre Dame De Namur
Gr: 6-12 | 542 students
Avg. class size: 15 students
All-girls (Catholic)
560 Sproul Rd
Villanova, PA 19085
(610) 687-0650
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The Agnes Irwin School Photo
The Agnes Irwin School
Gr: NS-12 | 673 students
Avg. class size: 15 students
Sports: 14
All-girls
275 S Ithan Ave
Bryn Mawr, PA 19010
(610) 801-1869
(3)
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The Baldwin School Photo
The Baldwin School
Gr: PK-12 | 565 students
Sports: 14
All-girls
701 Montgomery Avenue
Bryn Mawr, PA 19010
(610) 525-2700
(2)
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Map of Calvary Baptist Academy
Calvary Baptist Academy
Gr: PK-12 | 42 students
Avg. class size: 8 students
Sports: 5 | Extracurriculars: 3
Baptist
11394 Route 286 Hwy E
Clymer, PA 15728
(724) 254-9411
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The Church Farm School Photo
The Church Farm School
Gr: 9-12 | 147 students
Avg. class size: 10 students
Sports: 11 | Extracurriculars: 15
All-boys (Episcopal)
1001 E Lincoln Hwy
Exton, PA 19341
(610) 363-7500
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Devon Preparatory School Photo
Devon Preparatory School
Gr: 6-12 | 325 students
Avg. class size: 14 students
Sports: 16 | Extracurriculars: 24
All-boys (Catholic)
363 N. Valley Forge Road
Devon, PA 19333
(610) 688-7337
(3)
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Dock Mennonite Academy Photo
Dock Mennonite Academy
Gr: PK-12 | 642 students
Avg. class size: 18 students
Sports: 12
Mennonite
1000 Forty Foot Road
Lansdale, PA 19446
(215) 362-2675
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The Ellis School Photo
The Ellis School
Gr: PK-12 | 403 students
Avg. class size: 12 students
Sports: 10
All-girls
6425 Fifth Avenue
Pittsburgh, PA 15206
(412) 661-5992
(18)
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Friends Central School Photo
Friends Central School
Gr: NS-12
Avg. class size: 14 students
Sports: 17 | Extracurriculars: 10
Friends
1101 City Avenue
Wynnewood, PA 19096
(610) 649-7440
(1)
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Show 22 more private schools in Pennsylvania (out of 57 total schools)
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Frequently Asked Questions

What are the top ranked private high schools belonging to National Association of Independent Schools (NAIS) in Pennsylvania?
The top ranked private high schools belonging to National Association of Independent Schools (NAIS) in Pennsylvania include Mercersburg Academy, The Haverford School, and Grier School.
How many private high schools belonging to National Association of Independent Schools (NAIS) are located in Pennsylvania?
57 private high schools belonging to National Association of Independent Schools (NAIS) are located in Pennsylvania.
How much do private high schools belonging to National Association of Independent Schools (NAIS) cost in Pennsylvania?
The average tuition cost is $38,712, which is higher than the Pennsylvania private school average tuition cost of $19,283.
How diverse are private high schools belonging to National Association of Independent Schools (NAIS) in Pennsylvania?
Pennsylvania private high schools belonging to National Association of Independent Schools (NAIS) are approximately 30% minority students, which is higher than the Pennsylvania private school average of 27%.
What percentage of private high schools belonging to National Association of Independent Schools (NAIS) are religiously affiliated in Pennsylvania?
46% of private high schools belonging to National Association of Independent Schools (NAIS) in Pennsylvania are religiously affiliated (most commonly Catholic and Friends).
57
Private Schools
27,195
Students
$38,712
Avg. Tuition
30%
Students of Color
8:1
Student-Teacher Ratio

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