#1 Largest Private Schools in Marietta, GA
Legacy Christian School
Christian school (nondenominational) · Grades K–11
1,120 students
Marietta, GA
BOverall grade1,120 students11 students per teacher
2026 lists
Largest Private Schools in Marietta, GA
The private schools in Marietta, GA with the most students. Top 19 of 19 schools.
#2 Largest Private Schools in Marietta, GA
The Walker School
Independent school · Grades Pre-K–12
902 students
Marietta, GA
A+Overall grade902 students8 students per teacher
#3 Largest Private Schools in Marietta, GA
Mt. Bethel Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
659 students
Marietta, GA
A+Overall grade659 students7 students per teacher
#4 Largest Private Schools in Marietta, GA
St. Joseph Catholic School
Diocesan school · Grades Pre-K–8
366 students
Marietta, GA
AOverall grade366 students12 students per teacher
#5 Largest Private Schools in Marietta, GA
The Stonehaven School
Christian school (nondenominational) · Grades K–12
300 students
Marietta, GA
BOverall grade300 students11 students per teacher
#6 Largest Private Schools in Marietta, GA
Eastside Christian School
Christian school (nondenominational) · Grades K–9
281 students
Marietta, GA
B+Overall grade281 students7 students per teacher
#7 Largest Private Schools in Marietta, GA
Dominion Christian High School
Christian school (nondenominational) · Grades 6–12
258 students
Marietta, GA
BOverall grade258 students12 students per teacher
#8 Largest Private Schools in Marietta, GA
Mde School of East Cobb
Special education school · Grades 1–12
214 students
Marietta, GA
BOverall grade214 students6 students per teacher
#9 Largest Private Schools in Marietta, GA
Gracepoint School
Special education school · Grades 1–8
134 students
Marietta, GA
AOverall grade134 students3 students per teacher
#10 Largest Private Schools in Marietta, GA
Carman Adventist School
Seventh-day Adventist school · Grades Pre-K–8
119 students
Marietta, GA
B+Overall grade119 students15 students per teacher
#11 Largest Private Schools in Marietta, GA
East Cobb Christian School
Presbyterian school · Grades K–8
116 students
Marietta, GA
A-Overall grade116 students7 students per teacher
#12 Largest Private Schools in Marietta, GA
The Garden School
Independent school · Grades Pre-K–6
80 students
Marietta, GA
AOverall grade80 students6 students per teacher
#13 Largest Private Schools in Marietta, GA
The Cumberland School - Upper School
Christian school (nondenominational) · Grades 6–12
75 students
Marietta, GA
BOverall grade75 students10 students per teacher
#14 Largest Private Schools in Marietta, GA
Riverstone Montessori Academy
Montessori school · Ungraded
72 students
Marietta, GA
A-Overall grade72 students12 students per teacher
#15 Largest Private Schools in Marietta, GA
Montessori School of Woodstock
Montessori school · Ungraded
70 students
Marietta, GA
B+Overall grade70 students18 students per teacher
#16 Largest Private Schools in Marietta, GA
Faith Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
63 students
Marietta, GA
A+Overall grade63 students6 students per teacher
#17 Largest Private Schools in Marietta, GA
Casa Dei Bambini Montessori School
Montessori school · Grades Pre-K–6
45 students
Marietta, GA
AOverall grade45 students4 students per teacher
#18 Largest Private Schools in Marietta, GA
Acton Academy Marietta
Alternative school · Ungraded
24 students
Marietta, GA
A-Overall grade24 students8 students per teacher
#19 Largest Private Schools in Marietta, GA
West Cobb Preparatory Academy
Independent school · Grades K–1
20 students
Marietta, GA
B+Overall grade20 students10 students per teacher
From official public records, updated October 2026.