#1 Largest Private Schools in Gloucester County, NJ
St. Margaret Regional School
Parish school · Grades Pre-K–8
431 students
Woodbury Heights, NJ
B-Overall grade431 students20 students per teacher
2026 lists
Largest Private Schools in Gloucester County, NJ
The private schools in Gloucester County, NJ with the most students. Top 13 of 13 schools.
#2 Largest Private Schools in Gloucester County, NJ
Gloucester County Christian School
Christian school (nondenominational) · Grades Pre-K–12
348 students
Sewell, NJ
B-Overall grade348 students17 students per teacher
#3 Largest Private Schools in Gloucester County, NJ
St. Mary School
Diocesan school · Grades Pre-K–8
344 students
Williamstown, NJ
B+Overall grade344 students12 students per teacher
#4 Largest Private Schools in Gloucester County, NJ
Edgarton Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
224 students
Newfield, NJ
A-Overall grade224 students10 students per teacher
#5 Largest Private Schools in Gloucester County, NJ
Our Lady of Mercy Academy
Independent Catholic school · Grades 9–12
220 students
Newfield, NJ
A+Overall gradeAll girls220 students10 students per teacher
#6 Largest Private Schools in Gloucester County, NJ
St. Michael the Archangel Regional School
Diocesan school · Grades Pre-K–8
164 students
Clayton, NJ
BOverall grade164 students14 students per teacher
#7 Largest Private Schools in Gloucester County, NJ
Guardian Angels Regional School
Parish school · Grades Pre-K–8
151 students
Paulsboro, NJ
B+Overall grade151 students12 students per teacher
#8 Largest Private Schools in Gloucester County, NJ
Friends School Mullica Hill
Quaker (Friends) school · Grades Pre-K–8
134 students
Mullica Hill, NJ
A-Overall grade134 students9 students per teacher
#9 Largest Private Schools in Gloucester County, NJ
Ambassador Christian Academy
Pentecostal school · Grades K–8
103 students
Sewell, NJ
A+Overall grade103 students8 students per teacher
#10 Largest Private Schools in Gloucester County, NJ
The Durand School
Special education school · Grades K–12
82 students
Woodbury, NJ
A+Overall grade82 students3 students per teacher
#11 Largest Private Schools in Gloucester County, NJ
Guardian Angels
Parish school · Grades Pre-K–3
76 students
Gibbstown, NJ
BOverall grade76 students17 students per teacher
#12 Largest Private Schools in Gloucester County, NJ
Hollydell School
Special education school · Grades Pre-K–12
49 students
Sewell, NJ
B+Overall grade49 students7 students per teacher
#13 Largest Private Schools in Gloucester County, NJ
Lasting Legacy Academy
Alternative school · Grades Pre-K–5
25 students
Williamstown, NJ
A-Overall grade25 students5 students per teacher
From official public records, updated October 2026.