#1 Largest Private Schools in Morris County, NJ
Delbarton School
Independent Catholic school · Grades 7–12
646 students
Morristown, NJ
A+Overall gradeAll boys646 students8 students per teacher
2026 lists
Largest Private Schools in Morris County, NJ
The private schools in Morris County, NJ with the most students. Top 34 of 34 schools.
#2 Largest Private Schools in Morris County, NJ
Gill St. Bernard S School
Independent school · Grades Pre-K–12
561 students
Gladstone, NJ
A+Overall grade561 students7 students per teacher
#3 Largest Private Schools in Morris County, NJ
Assumption of the BVM School
Diocesan school · Grades Pre-K–8
376 students
Morristown, NJ
BOverall grade376 students13 students per teacher
#4 Largest Private Schools in Morris County, NJ
St. Vincent Martyr School
Parish school · Grades Pre-K–8
372 students
Madison, NJ
AOverall grade372 students11 students per teacher
#5 Largest Private Schools in Morris County, NJ
The Peck School
Independent school · Grades K–8
354 students
Morristown, NJ
AOverall grade354 students6 students per teacher
#6 Largest Private Schools in Morris County, NJ
American Christian School
Christian school (nondenominational) · Grades Pre-K–12
240 students
Succasunna, NJ
BOverall grade240 students11 students per teacher
#7 Largest Private Schools in Morris County, NJ
Academy of St. Elizabeth
Independent Catholic school · Grades 9–12
236 students
Convent Station, NJ
A+Overall gradeAll girls236 students6 students per teacher
#8 Largest Private Schools in Morris County, NJ
Cheder Lubavitch
Jewish day school · Grades Pre-K–8
231 students
Morristown, NJ
AOverall grade231 students11 students per teacher
#9 Largest Private Schools in Morris County, NJ
Holy Spirit School
Parish school · Grades Pre-K–8
213 students
Pequannock, NJ
AOverall grade213 students11 students per teacher
#10 Largest Private Schools in Morris County, NJ
St. Therese School
Diocesan school · Grades Pre-K–8
201 students
Succasunna, NJ
B-Overall grade201 students18 students per teacher
#11 Largest Private Schools in Morris County, NJ
Villa Walsh Academy
Independent Catholic school · Grades 7–12
194 students
Morristown, NJ
A+Overall gradeAll girls194 students6 students per teacher
#12 Largest Private Schools in Morris County, NJ
Trinity Christian School
Christian school (nondenominational) · Grades K–12
180 students
Montville, NJ
A+Overall grade180 students10 students per teacher
#13 Largest Private Schools in Morris County, NJ
Divine Mercy Academy
Diocesan school · Grades Pre-K–8
166 students
Rockaway, NJ
A-Overall grade166 students12 students per teacher
#14 Largest Private Schools in Morris County, NJ
St. Patrick School
Diocesan school · Grades Pre-K–8
163 students
Chatham, NJ
BOverall grade163 students13 students per teacher
#15 Largest Private Schools in Morris County, NJ
The Red Oaks School
Montessori school · Grades Pre-K–8
157 students
Morristown, NJ
B+Overall grade157 students8 students per teacher
#16 Largest Private Schools in Morris County, NJ
Gottesman RTW Academy
Jewish day school · Grades Pre-K–8
134 students
Randolph, NJ
A+Overall grade134 students6 students per teacher
#17 Largest Private Schools in Morris County, NJ
The Craig School
Special education school · Grades 2–12
134 students
Mountain Lakes, NJ
AOverall grade134 students4 students per teacher
#18 Largest Private Schools in Morris County, NJ
Chatham Day School
Independent school · Grades Pre-K–8
126 students
Chatham, NJ
A+Overall grade126 students4 students per teacher
#19 Largest Private Schools in Morris County, NJ
St. Elizabeth Nursery & Montessori School
Independent Catholic school · Grades Pre-K–6
121 students
Parsippany, NJ
A+Overall grade121 students8 students per teacher
#20 Largest Private Schools in Morris County, NJ
PG Chambers School
Special education school · Ungraded
108 students
Cedar Knolls, NJ
B+Overall grade108 students6 students per teacher
#21 Largest Private Schools in Morris County, NJ
Lumen Gentium Academy
Independent Catholic school · Grades 9–12
104 students
Boonton, NJ
BOverall grade104 students21 students per teacher
#22 Largest Private Schools in Morris County, NJ
The Calais School
Special education school · Grades 2–12
101 students
Whippany, NJ
BOverall grade101 students6 students per teacher
#23 Largest Private Schools in Morris County, NJ
All Saints Academy
Diocesan school · Grades Pre-K–8
100 students
Parsippany, NJ
A+Overall grade100 students8 students per teacher
#24 Largest Private Schools in Morris County, NJ
Hudsonway Immersion School
Independent school · Grades Pre-K–5
86 students
Stirling, NJ
AOverall grade86 students5 students per teacher
From official public records, updated October 2026.