#1 Private Schools with the Smallest Classes in Charleston, SC
Addlestone Hebrew Academy
Jewish day school · Grades K–8
3.9 students per teacher
Charleston, SC
AOverall grade61 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Charleston, SC
Private schools in Charleston, SC with the fewest students per teacher (not counting preschools and special education schools). Top 16 of 16 schools.
#2 Private Schools with the Smallest Classes in Charleston, SC
Ashley Hall School
Independent school · Grades Pre-K–12
6.2 students per teacher
Charleston, SC
A+Overall grade543 students6 students per teacher
#3 Private Schools with the Smallest Classes in Charleston, SC
Addlestone Hebrew Academy
Jewish day school · Grades Pre-K–8
6.2 students per teacher
Charleston, SC
A-Overall grade60 students6 students per teacher
#4 Private Schools with the Smallest Classes in Charleston, SC
Charleston Day School
Independent school · Grades K–8
7 students per teacher
Charleston, SC
B+Overall grade246 students7 students per teacher
#5 Private Schools with the Smallest Classes in Charleston, SC
Nativity School
Parish school · Grades Pre-K–8
7.3 students per teacher
Charleston, SC
A+Overall grade91 students7 students per teacher
#6 Private Schools with the Smallest Classes in Charleston, SC
The Charleston Catholic School
Parish school · Grades Pre-K–8
7.8 students per teacher
Charleston, SC
A+Overall grade163 students8 students per teacher
#7 Private Schools with the Smallest Classes in Charleston, SC
Meeting Street Academy
Independent school · Grades Pre-K–5
7.9 students per teacher
Charleston, SC
BOverall grade209 students8 students per teacher
#8 Private Schools with the Smallest Classes in Charleston, SC
The Cooper School
Alternative school · Grades K–8
8.1 students per teacher
Charleston, SC
B+Overall grade153 students8 students per teacher
#9 Private Schools with the Smallest Classes in Charleston, SC
James Island Christian School
Christian school (nondenominational) · Grades Pre-K–8
8.3 students per teacher
Charleston, SC
B-Overall grade221 students8 students per teacher
#10 Private Schools with the Smallest Classes in Charleston, SC
Mason Preparatory School
Christian school (nondenominational) · Grades K–8
9 students per teacher
Charleston, SC
BOverall grade300 students9 students per teacher
#11 Private Schools with the Smallest Classes in Charleston, SC
Porter-Gaud School
Episcopal school · Grades 1–12
9.4 students per teacher
Charleston, SC
A+Overall grade1,071 students9 students per teacher
#12 Private Schools with the Smallest Classes in Charleston, SC
Blessed Sacrament Catholic School
Diocesan school · Grades Pre-K–8
10.3 students per teacher
Charleston, SC
A-Overall grade231 students10 students per teacher
#13 Private Schools with the Smallest Classes in Charleston, SC
James Island Christian School
Christian school (nondenominational) · Grades Pre-K–8
10.9 students per teacher
Charleston, SC
B-Overall grade218 students11 students per teacher
#14 Private Schools with the Smallest Classes in Charleston, SC
First Baptist School of Charleston
Baptist school · Grades Pre-K–12
12.2 students per teacher
Charleston, SC
B-Overall grade501 students12 students per teacher
#15 Private Schools with the Smallest Classes in Charleston, SC
Bishop England High School
Diocesan school · Grades 9–12
12.3 students per teacher
Charleston, SC
B+Overall grade718 students12 students per teacher
#16 Private Schools with the Smallest Classes in Charleston, SC
Cathedral Academy
Christian school (nondenominational) · Grades Pre-K–12
12.7 students per teacher
Charleston, SC
B-Overall grade348 students13 students per teacher
From official public records, updated October 2026.