#1 Private Schools with the Smallest Classes in Marietta, GA
Casa Dei Bambini Montessori School
Montessori school · Grades Pre-K–6
4.3 students per teacher
Marietta, GA
AOverall grade45 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Marietta, GA
Private schools in Marietta, GA with the fewest students per teacher (not counting preschools and special education schools). Top 15 of 15 schools.
#2 Private Schools with the Smallest Classes in Marietta, GA
The Garden School
Independent school · Grades Pre-K–6
5.5 students per teacher
Marietta, GA
AOverall grade80 students6 students per teacher
#3 Private Schools with the Smallest Classes in Marietta, GA
Faith Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
6.3 students per teacher
Marietta, GA
A+Overall grade63 students6 students per teacher
#4 Private Schools with the Smallest Classes in Marietta, GA
Mt. Bethel Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
6.6 students per teacher
Marietta, GA
A+Overall grade659 students7 students per teacher
#5 Private Schools with the Smallest Classes in Marietta, GA
East Cobb Christian School
Presbyterian school · Grades K–8
7.1 students per teacher
Marietta, GA
A-Overall grade116 students7 students per teacher
#6 Private Schools with the Smallest Classes in Marietta, GA
Eastside Christian School
Christian school (nondenominational) · Grades K–9
7.3 students per teacher
Marietta, GA
B+Overall grade281 students7 students per teacher
#7 Private Schools with the Smallest Classes in Marietta, GA
The Walker School
Independent school · Grades Pre-K–12
7.7 students per teacher
Marietta, GA
A+Overall grade902 students8 students per teacher
#8 Private Schools with the Smallest Classes in Marietta, GA
The Cumberland School - Upper School
Christian school (nondenominational) · Grades 6–12
9.6 students per teacher
Marietta, GA
BOverall grade75 students10 students per teacher
#9 Private Schools with the Smallest Classes in Marietta, GA
The Stonehaven School
Christian school (nondenominational) · Grades K–12
10.7 students per teacher
Marietta, GA
BOverall grade300 students11 students per teacher
#10 Private Schools with the Smallest Classes in Marietta, GA
Legacy Christian School
Christian school (nondenominational) · Grades K–11
11.1 students per teacher
Marietta, GA
BOverall grade1,120 students11 students per teacher
#11 Private Schools with the Smallest Classes in Marietta, GA
St. Joseph Catholic School
Diocesan school · Grades Pre-K–8
11.7 students per teacher
Marietta, GA
AOverall grade366 students12 students per teacher
#12 Private Schools with the Smallest Classes in Marietta, GA
Dominion Christian High School
Christian school (nondenominational) · Grades 6–12
11.7 students per teacher
Marietta, GA
BOverall grade258 students12 students per teacher
#13 Private Schools with the Smallest Classes in Marietta, GA
Riverstone Montessori Academy
Montessori school · Ungraded
12 students per teacher
Marietta, GA
A-Overall grade72 students12 students per teacher
#14 Private Schools with the Smallest Classes in Marietta, GA
Carman Adventist School
Seventh-day Adventist school · Grades Pre-K–8
14.9 students per teacher
Marietta, GA
B+Overall grade119 students15 students per teacher
#15 Private Schools with the Smallest Classes in Marietta, GA
Montessori School of Woodstock
Montessori school · Ungraded
17.5 students per teacher
Marietta, GA
B+Overall grade70 students18 students per teacher
From official public records, updated October 2026.