#1 Best Private Schools in Marietta, GA
The Walker School
Independent school · Grades Pre-K–12
The largest independent school in Marietta
Marietta, GA
A+Overall grade902 students8 students per teacher
2026 lists
Best Private Schools in Marietta, GA
Private schools in Marietta, GA with the highest overall grades. Top 14 of 14 schools.
#2 Best Private Schools in Marietta, GA
Faith Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Smaller classes than 69% of Christian schools in Georgia
Marietta, GA
A+Overall grade63 students6 students per teacher
#3 Best Private Schools in Marietta, GA
Mt. Bethel Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
100% of graduates go to four-year colleges
Marietta, GA
A+Overall grade659 students7 students per teacher
#4 Best Private Schools in Marietta, GA
St. Joseph Catholic School
Diocesan school · Grades Pre-K–8
The only Catholic school in Marietta
Marietta, GA
AOverall grade366 students12 students per teacher
#5 Best Private Schools in Marietta, GA
The Garden School
Independent school · Grades Pre-K–6
The smallest classes of any independent school in Marietta
Marietta, GA
AOverall grade80 students6 students per teacher
#6 Best Private Schools in Marietta, GA
East Cobb Christian School
Presbyterian school · Grades K–8
Smaller classes than 60% of Christian schools in Georgia
Marietta, GA
A-Overall grade116 students7 students per teacher
#7 Best Private Schools in Marietta, GA
Riverstone Montessori Academy
Montessori school · Ungraded
The largest Montessori school in Marietta
Marietta, GA
A-Overall grade72 students12 students per teacher
#8 Best Private Schools in Marietta, GA
Eastside Christian School
Christian school (nondenominational) · Grades K–9
Smaller classes than 66% of Christian schools in Georgia
Marietta, GA
B+Overall grade281 students7 students per teacher
#9 Best Private Schools in Marietta, GA
Montessori School of Woodstock
Montessori school · Ungraded
One of the most diverse private schools in Georgia
Marietta, GA
B+Overall grade70 students18 students per teacher
#10 Best Private Schools in Marietta, GA
Carman Adventist School
Seventh-day Adventist school · Grades Pre-K–8
One of the most diverse private schools in Georgia
Marietta, GA
B+Overall grade119 students15 students per teacher
#11 Best Private Schools in Marietta, GA
The Stonehaven School
Christian school (nondenominational) · Grades K–12
Growing: enrollment up 223% since 2011–12
Marietta, GA
BOverall grade300 students11 students per teacher
#12 Best Private Schools in Marietta, GA
Dominion Christian High School
Christian school (nondenominational) · Grades 6–12
One of 10 Christian schools in Marietta
Marietta, GA
BOverall grade258 students12 students per teacher
#13 Best Private Schools in Marietta, GA
Legacy Christian School
Christian school (nondenominational) · Grades K–11
The largest Christian school in Marietta
Marietta, GA
BOverall grade1,120 students11 students per teacher
#14 Best Private Schools in Marietta, GA
The Cumberland School - Upper School
Christian school (nondenominational) · Grades 6–12
One of 10 Christian schools in Marietta
Marietta, GA
BOverall grade75 students10 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.