#1 Largest Private Schools in Delaware
Caravel Academy
Independent school · Grades Pre-K–12
1,120 students
Bear, DE
B+Overall grade1,120 students10 students per teacher
2026 lists
Largest Private Schools in Delaware
The private schools in Delaware with the most students. Top 50 of 62 schools.
#2 Largest Private Schools in Delaware
St. Mark's High School
Diocesan school · Grades 9–12
829 students
Wilmington, DE
BOverall grade829 students17 students per teacher
#3 Largest Private Schools in Delaware
Red Lion Christian Academy
Christian school (nondenominational) · Grades K–12
695 students
Bear, DE
AOverall grade695 students10 students per teacher
#4 Largest Private Schools in Delaware
Christ the Teacher Catholic School
Diocesan school · Grades Pre-K–8
524 students
Newark, DE
B-Overall grade524 students23 students per teacher
#5 Largest Private Schools in Delaware
St. Mary Magdalen School
Parish school · Grades Pre-K–8
467 students
Wilmington, DE
B+Overall grade467 students13 students per teacher
#6 Largest Private Schools in Delaware
St. John the Beloved School
Parish school · Grades Pre-K–8
459 students
Wilmington, DE
B-Overall grade459 students18 students per teacher
#7 Largest Private Schools in Delaware
The Tatnall School
Independent school · Grades Pre-K–12
457 students
Wilmington, DE
A+Overall grade457 students6 students per teacher
#8 Largest Private Schools in Delaware
Ursuline Academy, Lower
Independent Catholic school · Grades 3–8
456 students
Wilmington, DE
A+Overall grade456 students8 students per teacher
#9 Largest Private Schools in Delaware
Padua Academy
Diocesan school · Grades 9–12
424 students
Wilmington, DE
A+Overall gradeAll girls424 students11 students per teacher
#10 Largest Private Schools in Delaware
Immaculate Heart of Mary
Diocesan school · Grades Pre-K–8
406 students
Wilmington, DE
B-Overall grade406 students16 students per teacher
#11 Largest Private Schools in Delaware
The Independence School
Independent school · Grades Pre-K–8
384 students
Newark, DE
AOverall grade384 students8 students per teacher
#12 Largest Private Schools in Delaware
St. Elizabeth School
Diocesan school · Grades Pre-K–12
364 students
Wilmington, DE
BOverall grade364 students12 students per teacher
#13 Largest Private Schools in Delaware
Holy Cross School
Diocesan school · Grades Pre-K–8
331 students
Dover, DE
B+Overall grade331 students15 students per teacher
#14 Largest Private Schools in Delaware
Calvary Christian Academy
Assembly of God school · Grades Pre-K–12
330 students
Dover, DE
A+Overall grade330 students8 students per teacher
#15 Largest Private Schools in Delaware
St. Andrew's School
Episcopal school · Grades 9–12
320 students
Middletown, DE
A+Overall grade320 students6 students per teacher
#16 Largest Private Schools in Delaware
Greenwood Mennonite School
Mennonite school · Grades Pre-K–12
296 students
Greenwood, DE
B-Overall grade296 students13 students per teacher
#17 Largest Private Schools in Delaware
St. Annes Episcopal School
Episcopal school · Grades Pre-K–8
256 students
Middletown, DE
A+Overall grade256 students7 students per teacher
#18 Largest Private Schools in Delaware
St. Ann School
Parish school · Grades Pre-K–8
200 students
Wilmington, DE
BOverall grade200 students16 students per teacher
#19 Largest Private Schools in Delaware
Delmarva Christian High School
Christian school (nondenominational) · Grades 9–12
198 students
Georgetown, DE
BOverall grade198 students12 students per teacher
#20 Largest Private Schools in Delaware
Fairwinds Christian School
Baptist school · Grades Pre-K–12
173 students
Bear, DE
B+Overall grade173 students12 students per teacher
#21 Largest Private Schools in Delaware
Epworth Christian School
Christian school (nondenominational) · Grades Pre-K–8
162 students
Laurel, DE
BOverall grade162 students12 students per teacher
#22 Largest Private Schools in Delaware
St. Anthony of Padua Grade School
Diocesan school · Grades Pre-K–8
161 students
Wilmington, DE
A+Overall grade161 students9 students per teacher
#23 Largest Private Schools in Delaware
St. Edmond's Academy
Independent Catholic school · Grades Pre-K–8
158 students
Wilmington, DE
A+Overall gradeAll boys158 students9 students per teacher
#24 Largest Private Schools in Delaware
The Pilot School
Special education school · Grades K–8
136 students
Wilmington, DE
AOverall grade136 students4 students per teacher
From official public records, updated October 2026.