#1 Private Schools with the Smallest Classes in Lombard, IL
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
5.9 students per teacher
Lombard, IL
AOverall grade41 students6 students per teacher
2026 lists
Private Schools with the Smallest Classes in Lombard, IL
Private schools in Lombard, IL with the fewest students per teacher (not counting preschools and special education schools). Top 5 of 5 schools.
#2 Private Schools with the Smallest Classes in Lombard, IL
St. John's Lutheran School
Lutheran (Missouri Synod) school · Grades K–8
10 students per teacher
Lombard, IL
BOverall grade158 students10 students per teacher
#3 Private Schools with the Smallest Classes in Lombard, IL
College Preparatory School of America
Islamic school · Grades Pre-K–12
12.6 students per teacher
Lombard, IL
A+Overall grade602 students13 students per teacher
#4 Private Schools with the Smallest Classes in Lombard, IL
St. Pius X Elementary School
Parish school · Grades Pre-K–8
14.3 students per teacher
Lombard, IL
B+Overall grade300 students14 students per teacher
#5 Private Schools with the Smallest Classes in Lombard, IL
Ilm Montessori
Islamic · Montessori · Grades Pre-K–5
16.2 students per teacher
Lombard, IL
B-Overall grade81 students16 students per teacher
From official public records, updated October 2026.