#25 Largest Private Schools in Delaware
Concord Christian Academy
Baptist school · Grades Pre-K–12
136 students
Wilmington, DE
B+Overall grade136 students9 students per teacher
2026 lists
Largest Private Schools in Delaware
The private schools in Delaware with the most students. Top 50 of 62 schools.
#26 Largest Private Schools in Delaware
Islamic Academy of Delaware
Islamic school · Grades Pre-K–8
124 students
Newark, DE
A+Overall grade124 students5 students per teacher
#27 Largest Private Schools in Delaware
The Cross Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
120 students
Seaford, DE
BOverall grade120 students10 students per teacher
#28 Largest Private Schools in Delaware
Milford Christian School
Baptist school · Grades Pre-K–11
118 students
Milford, DE
B+Overall grade118 students10 students per teacher
#29 Largest Private Schools in Delaware
Central De Christian Academy
Christian school (nondenominational) · Grades Pre-K–9
116 students
Dover, DE
BOverall grade116 students13 students per teacher
#30 Largest Private Schools in Delaware
Harvest Christian Academy New Castle
Christian school (nondenominational) · Grades Pre-K–12
100 students
New Castle, DE
B+Overall grade100 students9 students per teacher
#31 Largest Private Schools in Delaware
Harvest Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
94 students
New Castle, DE
A+Overall grade94 students8 students per teacher
#32 Largest Private Schools in Delaware
Centerville Layton School
Independent school · Grades K–12
88 students
Wilmington, DE
AOverall grade88 students3 students per teacher
#33 Largest Private Schools in Delaware
Urban Promise School
Christian school (nondenominational) · Grades Pre-K–12
85 students
Wilmington, DE
AOverall grade85 students6 students per teacher
#34 Largest Private Schools in Delaware
Aquinas Academy
Independent Catholic school · Grades K–12
75 students
Bear, DE
B+Overall grade75 students9 students per teacher
#35 Largest Private Schools in Delaware
Newark Center for Creative Learning
Alternative school · Grades K–8
73 students
Newark, DE
AOverall grade73 students7 students per teacher
#36 Largest Private Schools in Delaware
St. Peter Cathedral School
Parish school · Grades Pre-K–8
65 students
Wilmington, DE
A+Overall grade65 students6 students per teacher
#37 Largest Private Schools in Delaware
Learning Express Academy
Independent school · Grades K–8
55 students
Newark, DE
AOverall grade55 students6 students per teacher
#38 Largest Private Schools in Delaware
Nativity Preparatory School of Wilmington
Diocesan school · Grades 5–8
53 students
Wilmington, DE
A+Overall gradeAll boys53 students8 students per teacher
#39 Largest Private Schools in Delaware
The Hockessin Montessori School
Montessori school · Grades Pre-K–8
47 students
Hockessin, DE
A+Overall grade47 students3 students per teacher
#40 Largest Private Schools in Delaware
Green Hill
Amish school · Grades 1–8
46 students
Dover, DE
46 students15 students per teacher
#41 Largest Private Schools in Delaware
Dover First Christian School
Seventh-day Adventist school · Grades Pre-K–8
45 students
Dover, DE
B+Overall grade45 students12 students per teacher
#42 Largest Private Schools in Delaware
Serviam Girls Academy
Christian school (nondenominational) · Grades 5–8
44 students
Wilmington, DE
A+Overall gradeAll girls44 students6 students per teacher
#43 Largest Private Schools in Delaware
Dover First Christian School
Seventh-day Adventist school · Grades Pre-K–8
44 students
Dover, DE
B+Overall grade44 students11 students per teacher
#44 Largest Private Schools in Delaware
The College School
Special education school · Grades 2–8
43 students
Newark, DE
A-Overall grade43 students4 students per teacher
#45 Largest Private Schools in Delaware
Towle Institute
Christian school (nondenominational) · Grades 6–12
40 students
Hockessin, DE
AOverall grade40 students4 students per teacher
#46 Largest Private Schools in Delaware
Shady Lane School
Amish school · Grades 1–8
36 students
Hartly, DE
36 students18 students per teacher
#47 Largest Private Schools in Delaware
Rose Valley School
Amish school · Grades 1–8
34 students
Dover, DE
34 students17 students per teacher
#48 Largest Private Schools in Delaware
Darul Amaanah Academy
Islamic school · Grades Pre-K–9
34 students
Wilmington, DE
34 students4 students per teacher
From official public records, updated October 2026.