#1 Private Schools with the Smallest Classes in Charleston County, SC
Sundrops Montessori School
Montessori school · Grades Pre-K–9
2.2 students per teacher
Mount Pleasant, SC
A+Overall grade66 students2 students per teacher
2026 lists
Private Schools with the Smallest Classes in Charleston County, SC
Private schools in Charleston County, SC with the fewest students per teacher (not counting preschools and special education schools). Top 23 of 23 schools.
#2 Private Schools with the Smallest Classes in Charleston County, SC
Addlestone Hebrew Academy
Jewish day school · Grades K–8
3.9 students per teacher
Charleston, SC
AOverall grade61 students4 students per teacher
#3 Private Schools with the Smallest Classes in Charleston County, SC
Ashley Hall School
Independent school · Grades Pre-K–12
6.2 students per teacher
Charleston, SC
A+Overall grade543 students6 students per teacher
#4 Private Schools with the Smallest Classes in Charleston County, 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
#5 Private Schools with the Smallest Classes in Charleston County, SC
University School of the Lowcountry
Independent school · Grades 3–12
6.7 students per teacher
Mount Pleasant, SC
AOverall grade84 students7 students per teacher
#6 Private Schools with the Smallest Classes in Charleston County, SC
Charleston Day School
Independent school · Grades K–8
7 students per teacher
Charleston, SC
B+Overall grade246 students7 students per teacher
#7 Private Schools with the Smallest Classes in Charleston County, SC
Nativity School
Parish school · Grades Pre-K–8
7.3 students per teacher
Charleston, SC
A+Overall grade91 students7 students per teacher
#8 Private Schools with the Smallest Classes in Charleston County, 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
#9 Private Schools with the Smallest Classes in Charleston County, SC
Meeting Street Academy
Independent school · Grades Pre-K–5
7.9 students per teacher
Charleston, SC
BOverall grade209 students8 students per teacher
#10 Private Schools with the Smallest Classes in Charleston County, SC
The Cooper School
Alternative school · Grades K–8
8.1 students per teacher
Charleston, SC
B+Overall grade153 students8 students per teacher
#11 Private Schools with the Smallest Classes in Charleston County, SC
Charleston Collegiate School
Independent school · Grades Pre-K–12
8.3 students per teacher
Johns Island, SC
A+Overall grade363 students8 students per teacher
#12 Private Schools with the Smallest Classes in Charleston County, 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
#13 Private Schools with the Smallest Classes in Charleston County, SC
Mason Preparatory School
Christian school (nondenominational) · Grades K–8
9 students per teacher
Charleston, SC
BOverall grade300 students9 students per teacher
#14 Private Schools with the Smallest Classes in Charleston County, SC
Porter-Gaud School
Episcopal school · Grades 1–12
9.4 students per teacher
Charleston, SC
A+Overall grade1,071 students9 students per teacher
#15 Private Schools with the Smallest Classes in Charleston County, SC
Northside Christian School
Baptist school · Grades Pre-K–12
9.9 students per teacher
North Charleston, SC
A+Overall grade227 students10 students per teacher
#16 Private Schools with the Smallest Classes in Charleston County, 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
#17 Private Schools with the Smallest Classes in Charleston County, 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
#18 Private Schools with the Smallest Classes in Charleston County, SC
Sundrops Montessori Bridge Campus
Montessori school · Grades Pre-K–9
11 students per teacher
Mount Pleasant, SC
BOverall grade66 students11 students per teacher
#19 Private Schools with the Smallest Classes in Charleston County, SC
Palmetto Christian Academy
Baptist school · Grades Pre-K–12
11.8 students per teacher
Mount Pleasant, SC
BOverall grade678 students12 students per teacher
#20 Private Schools with the Smallest Classes in Charleston County, SC
Palmetto Christian Academy
Baptist school · Grades Pre-K–12
11.8 students per teacher
Mount Pleasant, SC
B-Overall grade677 students12 students per teacher
#21 Private Schools with the Smallest Classes in Charleston County, 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
#22 Private Schools with the Smallest Classes in Charleston County, SC
Christ Our King-Stella Mans School
Parish school · Grades Pre-K–8
13.1 students per teacher
Mount Pleasant, SC
B-Overall grade602 students13 students per teacher
#23 Private Schools with the Smallest Classes in Charleston County, SC
Charleston Bilingual Academy
Christian school (nondenominational) · Grades Pre-K–7
15.2 students per teacher
North Charleston, SC
BOverall grade194 students15 students per teacher
From official public records, updated October 2026.