For the 2026 school year, there are 5 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 (2026)
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
Overview
This Town (Gaithersburg)
This State (MD)
# Schools
6 Schools
Student Body:
# Students
609 Students
73,430 Students
% Average Students of Color
30%
36%
Academics and Faculty:
# Teachers
82 Teachers
8,615 Teachers
Average Student-Teacher Ratio
7:1
9:1
% Average Faculty w/Advanced Degree
50%
59%
Average Class Size
15 students
15 students
Average Number of AP Courses
5 courses
13 courses
Average SAT score
1220
(Out of 1600)
1231
Average ACT score
26
(Out of 36)
27
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$15,350
$20,500
Average % on Financial Aid
35%
36%
Average Financial Aid Grant
$5,000
$9,550
Average Acceptance Rate
75%
77%
Students by Ethnicity:
Diversity Score
0.68
0.60
# American Indian Students
1 Student
245 Students
% American Indian Students
n/a
n/a
# Asian Students
19 Students
2,585 Students
% Asian Students
3%
4%
# Hispanic Students
28 Students
3,298 Students
% Hispanic Students
4%
5%
# Black Students
97 Students
12,725 Students
% Black Students
16%
17%
# White Students
198 Students
43,451 Students
% White Students
32%
59%
# Hawaiian Students
n/a
300 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
276 Students
11,429 Students
% of Others Students
45%
15%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Extracurriculars
11 extracurriculars
15 extracurriculars
Average Number of Sports
7 sports
10 sports
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?
5 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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