Glenwood Academy Photo - What could be more fun than Ballons and chemical reactions!

Top 20 Best Maryland Nonsectarian Private High Schools (2025)

For the 2025 school year, there are 101 nonsectarian private high schools in Maryland. You can also find more religiously affiliated schools in Maryland.
The top ranked nonsectarian private high schools in Maryland include The Bryn Mawr School, Gilman School, and Landon School.

Top Ranked Nonsectarian Private High Schools in Maryland (2025)

School
Location
Grades
Students
Barrie School
Barrie School Photo
Montessori School
(4)
13500 Layhill Road
Silver Spring, MD 20906
(301) 576-2800
Grades: PK-12
| 421 students
Bullis School
Bullis School Photo - At Bullis, students thrive in their pursuit of self-discovery, broaden their horizons, and ultimately transform our world.
10601 Falls Rd
Potomac, MD 20854
(301) 299-8500
Grades: K-12
| 1,022 students
Fusion Academy Rockville
Fusion Academy Rockville Photo - Classes at Fusion are one-to-one: one student and one teacher per classroom. Students have different teachers for different subjects, and teachers act as mentors in the one-to-one setting.
(1)
275 N. Washington Street, Suite 200
Rockville, MD 20850
(877) 673-8893
Grades: 6-12
| n/a students
Glenelg Country School
Glenelg Country School Photo - Upon entering our beautiful 90-acre campus, you first see our Upper School building which also connects to our Athletic Center.
(4)
12793 Folly Quarter Road
Ellicott City, MD 21042
(410) 531-7347
Grades: NS-12
| 815 students
The Gunston School
The Gunston School Photo
(3)
911 Gunston Rd
Centreville, MD 21617
(410) 758-0620
Grades: 9-12
| 248 students
Key School
Key School Photo
(7)
534 Hillsmere Drive
Annapolis, MD 21403
(410) 263-9231
Grades: NS-12
| 650 students
Landon School
Landon School Photo - We believe requiring a boy to engage in an array of experiences introduces him to passions and abilities he didn't know he had, which is essential to his emotional, social, physical, and intellectual growth.
All-boys
(6)
6101 Wilson Lane
Bethesda, MD 20817
(301) 320-3200
Grades: 3-12
| 690 students
McLean School
McLean School Photo - Engaged students who develop self advocacy skills.
(10)
8224 Lochinver Ln
Potomac, MD 20854
(240) 395-0698
Grades: K-12
| 498 students
Park School of Baltimore
Park School of Baltimore Photo - The Park School of Baltimore is an independent, gender-inclusive, non-sectarian progressive Pre-K through Grade 12 school located on a 100-acre campus just minutes from Baltimore city.
(3)
2425 Old Court Road
Pikesville, MD 21208
(410) 339-7070
Grades: PK-12
| 826 students
Roland Park Country School
Roland Park Country School Photo - What makes RPCS such an empowering school? The unique relationships created between students from K-12. From our kindergarten and 1st graders being paired and performing with our Upper School singing and dancing groups, to Upper School STEM classes hosting probability carnivals for Lower School, or Middle School students speaking to Lower School, we treasure and nurture these bonds.
All-girls
5204 Roland Avenue
Baltimore, MD 21210
(410) 323-5500
Grades: PK-12
| 620 students
Oneness-Family School
Oneness-Family School Photo
Montessori School
(12)
6701 Wisconsin Avenue
Chevy Chase, MD 20815
(301) 652-7751
Grades: NS-12
| 148 students
Washington Waldorf School
Washington Waldorf School Photo - At Washington Waldorf, we encourage the connections that broaden students` experiences and help them grow in new directions. Our teachers incorporate academic, artistic, and practical elements into every subject, creating memorable lessons, successful scholars, and strong individuals.
Special Program Emphasis
(7)
4800 Sangamore Road
Bethesda, MD 20816
(301) 229-6107
Grades: NS-12
| 276 students
Boys Latin School Of Maryland
Boys Latin School Of Maryland Photo - Inspiring the best in every boy ... Boys' Latin School
All-boys
822 W Lake Ave
Baltimore, MD 21210
(410) 377-5192
Grades: K-12
| 625 students
The Bryn Mawr School
All-girls
(1)
109 W Melrose Ave
Baltimore, MD 21210
(410) 323-8800
Grades: PK-12
| 788 students
Butler Montessori
Butler Montessori Photo - Upper Elementary students are typically 9-12 years of age and are continuing to develop their social awareness as they begin their pre-adolescent phase.
Montessori School
(9)
15951 Germantown Rd
Germantown, MD 20874
(301) 977-6600
Grades: NS-11
| 124 students
The Calverton School
The Calverton School Photo
(11)
300 Calverton School Rd
Huntingtown, MD 20639
(410) 535-0216
Grades: PK-12
| 335 students
Children's Home Diagnostic Center School
All-girls | Alternative School
205 Bloomsbury Ave
Catonsville, MD 21228
(410) 744-1083
Grades: 6-12
| 11 students
Chimes School The
Special Education School
4810 Seton Dr
Baltimore, MD 21215
(410) 358-8270
Grades: 3-12
| 52 students
Forbush School At Oakmont Upper School
Special Education School
610 E Diamond Ave Ste E
Gaithersburg, MD 20877
(301) 330-4359
Grades: 9-12
| 32 students
Forbush School At Prince Georges County
Special Education School
4819 Walden Lane Suite 4880
Lanham, MD 20706
(240) 667-1423
Grades: 1-12
| 44 students
The Foundation Schools
The Foundation Schools Photo
Special Education School
1330 McCormick Drive
Upper Marlboro, MD 20774
(301) 881-0078
Grades: K-12
| 298 students
Garrison Forest School
Garrison Forest School Photo - The campus entrance on Garrison Forest Road
All-girls
(3)
300 Garrison Forest Road
Owings Mills, MD 21117
(410) 559-3111
Grades: NS-12
| 550 students
German International School Washington Dc
German International School Washington Dc Photo
Special Program Emphasis
(1)
8617 Chateau Drive
Potomac, MD 20854
(301) 767-3812
Grades: PK-12
| 508 students
Gerstell Academy
Gerstell Academy Photo - Boy's Lacrosse at Gerstell...one of our many offerings for athletes!
(5)
2500 Old Westminster Pike
Finksburg, MD 21048
(410) 861-4400
Grades: PK-12
| 403 students
Gilman School
Gilman School Photo - Gilman's Upper School prepares young men to build the world of tomorrow. Students engage in a timeless and challenging college-preparatory program that emphasizes a strong work ethic, critical thinking skills, effective oral and written communication, and lifelong enjoyment of intellectual pursuits.
All-boys
5407 Roland Avenue
Baltimore, MD 21210
(410) 323-3800
Grades: PK-12
| 1,035 students
Glenwood Academy
Glenwood Academy Photo - Glenwood Academy now has classes through 11th grade with 12th grade beginning next year.
Special Education School
(7)
1545 Progress Way
Sykesville, MD 21784
(410) 489-6959
Grades: 3-12
| 65 students
Greenspring Montessori School
Greenspring Montessori School Photo - Service and stewardship is a major part of the Montessori curriculum. Here, Adolescents volunteer at RealFood Farm in Baltimore to plant seedlings.
Montessori School
(6)
10807 Tony Drive
Lutherville Timonium, MD 21093
(410) 321-8555
Grades: NS-9
| 305 students
The Harbour School At Annapolis
Special Education School
1277 Green Holly Drive
Annapolis, MD 21409
(410) 974-4248
Grades: 1-12
| 191 students
Holton-Arms School
All-girls
(1)
7303 River Road
Bethesda, MD 20817
(301) 365-6000
Grades: 3-12
| n/a students
Indian Creek School
(3)
1130 Anne Chambers Way
Crownsville, MD 21032
(410) 923-3660
Grades: PK-12
| 560 students
10960 Grantchester Way
Columbia, MD 21044
(888) 260-4159
Grades: K-12
| 889 students
Jemicy School
11 Celadon Rd
Owings Mills, MD 21117
(410) 653-2700
Grades: 1-12
| 453 students
Learning Community International The
Learning Community International The Photo - TLCI Core Beliefs Empowering learners to create and achieve their educational goals through a customized and collaborative process of reflection, self-evaluation, and self-correction.
Alternative School
9085 Flamepool Way
Columbia, MD 21045
(410) 730-0073
Grades: PK-12
| 73 students
The Maryland School For The Blind
Special Education School
3501 Taylor Ave
Nottingham, MD 21236
(410) 444-5000
Grades: PK-12
| 204 students
McDonogh School
McDonogh School Photo
(2)
8600 McDonogh Rd
Owings Mills, MD 21117
(443) 544-7020
Grades: PK-12
| 1,455 students
Show 66 more private schools in Maryland (out of 101 total schools)
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