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Landon School Top 3 · Highest Avg. SAT Score (MD)
Bullis School Top 10 · Most AP Courses (MD)
Roland Park Country School Top 3 · Largest Endowment (MD)

Best Maryland Private High Schools Belonging to National Association of Independent Schools (NAIS) (2026-27)

For the 2026-27 school year, there are 40 private high schools belonging to National Association of Independent Schools (NAIS) serving 19,685 students in Maryland. You can also find more schools membership associations in Maryland.
The top ranked private high schools belonging to National Association of Independent Schools (NAIS) in Maryland include Severn School, Gilman School, and The Bryn Mawr School.
The average tuition cost is $37,395, which is higher than the Maryland private high school average tuition cost of $20,776.
40% of private high schools belonging to National Association of Independent Schools (NAIS) in Maryland are religiously affiliated (most commonly Catholic and Episcopal).

Quick Facts (2026-27)

  • # Private Schools: 40

Quick Facts (2026-27)

  • # Private Schools: 40

Top Ranked Private High Schools Belonging to National Association of Independent Schools (NAIS) in Maryland (2026-27)

Barrie School Photo
Barrie School
Gr: PK-12 | 421 students
Avg. class size: 15 students
Sports: 7 | Extracurriculars: 19
Montessori School
13500 Layhill Road
Silver Spring, MD 20906
(301) 576-2800
(4)
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Bullis School Photo
Bullis School
Gr: K-12 | 1,099 students
Avg. class size: 15 students
Sports: 21
10601 Falls Rd
Potomac, MD 20854
(301) 299-8500
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Glenelg Country School Photo
Glenelg Country School
Gr: NS-12 | 849 students
Avg. class size: 14 students
Sports: 12 | Extracurriculars: 25
12793 Folly Quarter Road
Ellicott City, MD 21042
(410) 531-7347
(4)
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The Gunston School Photo
The Gunston School
Gr: 9-12 | 255 students
Avg. class size: 11 students
Sports: 11 | Extracurriculars: 18
911 Gunston Rd
Centreville, MD 21617
(410) 758-0620
(3)
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Landon School Photo
Landon School
Gr: 3-12 | 710 students
Avg. class size: 14 students
Sports: 22 | Extracurriculars: 27
All-boys
6101 Wilson Lane
Bethesda, MD 20817
(301) 320-1067
(6)
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McLean School Photo
McLean School
Gr: K-12 | 498 students
Avg. class size: 7 students
Sports: 14 | Extracurriculars: 16
8224 Lochinver Ln
Potomac, MD 20854
(240) 395-0698
(10)
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Park School of Baltimore Photo
Park School of Baltimore
Gr: PK-12 | 788 students
Avg. class size: 15 students
Sports: 13 | Extracurriculars: 25
2425 Old Court Road
Pikesville, MD 21208
(410) 339-7070
(3)
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Roland Park Country School Photo
Roland Park Country School
Gr: K-12 | 631 students
Avg. class size: 15 students
Sports: 19 | Extracurriculars: 11
All-girls
5204 Roland Avenue
Baltimore, MD 21210
(410) 323-5500
(1)
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Bishop McNamara High School Photo
Bishop McNamara High School
Gr: 9-12 | 894 students
Avg. class size: 18 students
Sports: 21 | Extracurriculars: 33
Catholic
6800 Marlboro Pike
District Heights, MD 20747
(301) 735-8401
(1)
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Boys Latin School Of Maryland Photo
Boys Latin School Of Maryland
Gr: K-12 | 625 students
Avg. class size: 14 students
Sports: 12
All-boys
822 W Lake Ave
Baltimore, MD 21210
(410) 377-5192
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Map of The Bryn Mawr School
The Bryn Mawr School
Gr: PK-12 | 843 students
Avg. class size: 14 students
Sports: 16
All-girls
109 W Melrose Ave
Baltimore, MD 21210
(410) 323-8800
(1)
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The Calverton School Photo
The Calverton School
Gr: PK-12 | 335 students
Sports: 9 | Extracurriculars: 24
300 Calverton School Rd
Huntingtown, MD 20639
(410) 535-0216
(11)
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The Catholic High School Of Baltimore Photo
The Catholic High School Of Baltimore
Gr: 9-12 | 287 students
Avg. class size: 12 students
Sports: 13 | Extracurriculars: 14
All-girls (Catholic)
2800 Edison Highway
Baltimore, MD 21213
(410) 732-6200
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Connelly School Of The Holy Child Photo
Connelly School Of The Holy Child
Gr: 6-12 | 318 students
Avg. class size: 16 students
Sports: 14 | Extracurriculars: 19
All-girls (Catholic)
9029 Bradley Blvd
Potomac, MD 20854
(301) 365-0955
(1)
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Friends School Of Baltimore Photo
Friends School Of Baltimore
Gr: PK-12 | 755 students
Avg. class size: 15 students
Sports: 18 | Extracurriculars: 19
Friends
5114 N Charles St
Baltimore, MD 21210
(410) 649-3210
(5)
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Garrison Forest School Photo
Garrison Forest School
Gr: NS-12 | 512 students
Avg. class size: 15 students
Sports: 18 | Extracurriculars: 23
All-girls
300 Garrison Forest Road
Owings Mills, MD 21117
(410) 559-3111
(6)
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Gilman School Photo
Gilman School
Gr: PK-12 | 1,050 students
Avg. class size: 16 students
Sports: 16 | Extracurriculars: 35
All-boys
5407 Roland Avenue
Baltimore, MD 21210
(410) 323-3800
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Map of The Heights School
The Heights School
Gr: 3-12 | 575 students
Avg. class size: 17 students
All-boys (Catholic)
10400 Seven Locks Rd
Potomac, MD 20854
(301) 365-4300
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Holton-Arms School Photo
Holton-Arms School
Gr: 3-12
Avg. class size: 15 students
Sports: 16 | Extracurriculars: 50
All-girls
7303 River Road
Bethesda, MD 20817
(301) 365-6000
(1)
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Map of Indian Creek School
Indian Creek School
Gr: PK-12 | 560 students
Avg. class size: 15 students
Sports: 13 | Extracurriculars: 11
1130 Anne Chambers Way
Crownsville, MD 21032
(410) 923-3660
(3)
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Show 5 more private schools in Maryland (out of 40 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 Maryland?
The top ranked private high schools belonging to National Association of Independent Schools (NAIS) in Maryland include Severn School, Gilman School, and The Bryn Mawr School.
How many private high schools belonging to National Association of Independent Schools (NAIS) are located in Maryland?
40 private high schools belonging to National Association of Independent Schools (NAIS) are located in Maryland.
How much do private high schools belonging to National Association of Independent Schools (NAIS) cost in Maryland?
The average tuition cost is $37,395, which is higher than the Maryland private school average tuition cost of $20,776.
How diverse are private high schools belonging to National Association of Independent Schools (NAIS) in Maryland?
Maryland private high schools belonging to National Association of Independent Schools (NAIS) are approximately 36% minority students, which is lower than the Maryland private school average of 37%.
What percentage of private high schools belonging to National Association of Independent Schools (NAIS) are religiously affiliated in Maryland?
40% of private high schools belonging to National Association of Independent Schools (NAIS) in Maryland are religiously affiliated (most commonly Catholic and Episcopal).
40
Private Schools
19,685
Students
$37,395
Avg. Tuition
36%
Students of Color
7:1
Student-Teacher Ratio

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