For the 2025-26 school year, there are 6 private high schools serving 609 students in Gaithersburg, MD.
The top ranked private high schools in Gaithersburg, MD include Covenant Life School and Forbush School At Oakmont Upper School.
The average acceptance rate is 75%, which is lower than the Maryland private high school average acceptance rate of 77%.
33% of private high schools in Gaithersburg, MD are religiously affiliated (most commonly Christian).
Top Ranked Gaithersburg Private High Schools (2025-26)
School
Location
Quick Facts
7503 Muncaster Mill Rd
Gaithersburg, MD 20877
(301) 869-4500
Gaithersburg, MD 20877
(301) 869-4500
Gr: PK-12 | 493 students Avg. class size: 20 students Sports: 7 | Extracurrculars: 11 Tuition & acceptance rate listed
Forbush School At Oakmont Upper School
Special Education School
610 E Diamond Ave Ste E
Gaithersburg, MD 20877
(301) 330-4359
Gaithersburg, MD 20877
(301) 330-4359
Gr: 9-12 | 32 students
The Foundation School Of Montgomery County
Special Education School
220 Girard St
Gaithersburg, MD 20877
(301) 740-7807
Gaithersburg, MD 20877
(301) 740-7807
Gr: 1-12 | 62 students Avg. class size: 10 students
Lambo Academy International
Alternative School (Christian)
119 Watkins Station Cir # B
Gaithersburg, MD 20879
(415) 754-3889
Gaithersburg, MD 20879
(415) 754-3889
Gr: 9-12 | 6 students
Marcia D Smith School
Alternative School
9075 Comprint Ct
Gaithersburg, MD 20877
(301) 926-2300
Gaithersburg, MD 20877
(301) 926-2300
Gr: 9-12 | 16 students
Gaithersburg, Maryland Private Schools (Closed)
School
Location
Quick Facts
19425 Woodfield Road
Gaithersburg, MD 20879
(240) 238-1500
Gaithersburg, MD 20879
(240) 238-1500
Gr: PK-8 | 196 students Avg. class size: 24 students Tuition & acceptance rate listed
Gaithersburg Presbyterian Preschool & Kdgn (Closed 2025)
Daycare / Preschool (Christian)
610 S Frederick Avenue
Gaithersburg, MD 20877
(301) 977-5787
Gaithersburg, MD 20877
(301) 977-5787
Gr: PK-K | 46 students Avg. class size: 14 students Tuition & acceptance rate listed
Frequently Asked Questions
What are the top ranked private high schools in Gaithersburg, MD?
The top ranked private high schools in Gaithersburg, MD include Covenant Life School and Forbush School At Oakmont Upper School.
How many private high schools are located in Gaithersburg?
6 private high schools are located in Gaithersburg.
How diverse are private high schools in Gaithersburg?
Gaithersburg private high schools are approximately 30% minority students, which is lower than the Maryland private school average of 36%.
What percentage of private high schools are religiously affiliated in Gaithersburg?
33% of private high schools in Gaithersburg are religiously affiliated (most commonly Christian).
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