#1 Private Schools with the Smallest Classes in Delaware
The Hockessin Montessori School
Montessori school · Grades Pre-K–8
2.8 students per teacher
Hockessin, DE
A+Overall grade47 students3 students per teacher
2026 lists
Private Schools with the Smallest Classes in Delaware
Private schools in Delaware with the fewest students per teacher (not counting preschools and special education schools). Top 43 of 43 schools.
#2 Private Schools with the Smallest Classes in Delaware
Centerville Layton School
Independent school · Grades K–12
3.2 students per teacher
Wilmington, DE
AOverall grade88 students3 students per teacher
#3 Private Schools with the Smallest Classes in Delaware
Towle Institute
Christian school (nondenominational) · Grades 6–12
4 students per teacher
Hockessin, DE
AOverall grade40 students4 students per teacher
#4 Private Schools with the Smallest Classes in Delaware
Islamic Academy of Delaware
Islamic school · Grades Pre-K–8
4.7 students per teacher
Newark, DE
A+Overall grade124 students5 students per teacher
#5 Private Schools with the Smallest Classes in Delaware
Urban Promise School
Christian school (nondenominational) · Grades Pre-K–12
5.5 students per teacher
Wilmington, DE
AOverall grade85 students6 students per teacher
#6 Private Schools with the Smallest Classes in Delaware
St. Peter Cathedral School
Parish school · Grades Pre-K–8
5.5 students per teacher
Wilmington, DE
A+Overall grade65 students6 students per teacher
#7 Private Schools with the Smallest Classes in Delaware
The Tatnall School
Independent school · Grades Pre-K–12
5.6 students per teacher
Wilmington, DE
A+Overall grade457 students6 students per teacher
#8 Private Schools with the Smallest Classes in Delaware
Serviam Girls Academy
Christian school (nondenominational) · Grades 5–8
5.6 students per teacher
Wilmington, DE
A+Overall gradeAll girls44 students6 students per teacher
#9 Private Schools with the Smallest Classes in Delaware
St. Andrew's School
Episcopal school · Grades 9–12
5.9 students per teacher
Middletown, DE
A+Overall grade320 students6 students per teacher
#10 Private Schools with the Smallest Classes in Delaware
Learning Express Academy
Independent school · Grades K–8
6.4 students per teacher
Newark, DE
AOverall grade55 students6 students per teacher
#11 Private Schools with the Smallest Classes in Delaware
Newark Center for Creative Learning
Alternative school · Grades K–8
6.5 students per teacher
Newark, DE
AOverall grade73 students7 students per teacher
#12 Private Schools with the Smallest Classes in Delaware
St. Annes Episcopal School
Episcopal school · Grades Pre-K–8
7.3 students per teacher
Middletown, DE
A+Overall grade256 students7 students per teacher
#13 Private Schools with the Smallest Classes in Delaware
The Independence School
Independent school · Grades Pre-K–8
7.6 students per teacher
Newark, DE
AOverall grade384 students8 students per teacher
#14 Private Schools with the Smallest Classes in Delaware
Nativity Preparatory School of Wilmington
Diocesan school · Grades 5–8
7.6 students per teacher
Wilmington, DE
A+Overall gradeAll boys53 students8 students per teacher
#15 Private Schools with the Smallest Classes in Delaware
Ursuline Academy, Lower
Independent Catholic school · Grades 3–8
7.8 students per teacher
Wilmington, DE
A+Overall grade456 students8 students per teacher
#16 Private Schools with the Smallest Classes in Delaware
Calvary Christian Academy
Assembly of God school · Grades Pre-K–12
8.2 students per teacher
Dover, DE
A+Overall grade330 students8 students per teacher
#17 Private Schools with the Smallest Classes in Delaware
Harvest Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
8.2 students per teacher
New Castle, DE
A+Overall grade94 students8 students per teacher
#18 Private Schools with the Smallest Classes in Delaware
St. Edmond's Academy
Independent Catholic school · Grades Pre-K–8
8.6 students per teacher
Wilmington, DE
A+Overall gradeAll boys158 students9 students per teacher
#19 Private Schools with the Smallest Classes in Delaware
Concord Christian Academy
Baptist school · Grades Pre-K–12
8.6 students per teacher
Wilmington, DE
B+Overall grade136 students9 students per teacher
#20 Private Schools with the Smallest Classes in Delaware
Harvest Christian Academy New Castle
Christian school (nondenominational) · Grades Pre-K–12
8.6 students per teacher
New Castle, DE
B+Overall grade100 students9 students per teacher
#21 Private Schools with the Smallest Classes in Delaware
Aquinas Academy
Independent Catholic school · Grades K–12
8.9 students per teacher
Bear, DE
B+Overall grade75 students9 students per teacher
#22 Private Schools with the Smallest Classes in Delaware
St. Anthony of Padua Grade School
Diocesan school · Grades Pre-K–8
9 students per teacher
Wilmington, DE
A+Overall grade161 students9 students per teacher
#23 Private Schools with the Smallest Classes in Delaware
Red Lion Christian Academy
Christian school (nondenominational) · Grades K–12
9.5 students per teacher
Bear, DE
AOverall grade695 students10 students per teacher
#24 Private Schools with the Smallest Classes in Delaware
Caravel Academy
Independent school · Grades Pre-K–12
9.7 students per teacher
Bear, DE
B+Overall grade1,120 students10 students per teacher
From official public records, updated October 2026.