#1 Private Schools with the Smallest Classes in Winnebago County, IL
Montessori Private Academy
Montessori school · Grades Pre-K–6
4.7 students per teacher
Rockford, IL
AOverall grade54 students5 students per teacher
2026 lists
Private Schools with the Smallest Classes in Winnebago County, IL
Private schools in Winnebago County, IL with the fewest students per teacher (not counting preschools and special education schools). Top 15 of 15 schools.
#2 Private Schools with the Smallest Classes in Winnebago County, IL
Our Lady Sacred Heart Academy
Independent Catholic school · Grades Pre-K–12
6 students per teacher
Rockford, IL
A+Overall grade86 students6 students per teacher
#3 Private Schools with the Smallest Classes in Winnebago County, IL
Rockford Iqra' School
Islamic school · Grades Pre-K–12
7 students per teacher
Rockford, IL
AOverall grade109 students7 students per teacher
#4 Private Schools with the Smallest Classes in Winnebago County, IL
Concordia Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–5
7.7 students per teacher
Machesney Park, IL
AOverall grade41 students8 students per teacher
#5 Private Schools with the Smallest Classes in Winnebago County, IL
Keith Country Day School
Independent school · Grades Pre-K–12
7.8 students per teacher
Rockford, IL
AOverall grade195 students8 students per teacher
#6 Private Schools with the Smallest Classes in Winnebago County, IL
Cathedral Baptist School
Baptist school · Grades Pre-K–12
9 students per teacher
Rockford, IL
AOverall grade94 students9 students per teacher
#7 Private Schools with the Smallest Classes in Winnebago County, IL
Alpine Academy
Lutheran (ELCA) school · Grades Pre-K–7
9.1 students per teacher
Rockford, IL
A+Overall grade80 students9 students per teacher
#8 Private Schools with the Smallest Classes in Winnebago County, IL
Spectrum School
Independent school · Grades Pre-K–9
9.3 students per teacher
Rockford, IL
B+Overall grade40 students9 students per teacher
#9 Private Schools with the Smallest Classes in Winnebago County, IL
Berean Baptist Christian School
Baptist school · Grades Pre-K–12
11 students per teacher
Rockford, IL
B+Overall grade124 students11 students per teacher
#10 Private Schools with the Smallest Classes in Winnebago County, IL
Boylan Catholic H. S.
Diocesan school · Grades 9–12
12.6 students per teacher
Rockford, IL
A+Overall grade586 students13 students per teacher
#11 Private Schools with the Smallest Classes in Winnebago County, IL
Rockford Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–12
12.7 students per teacher
Rockford, IL
BOverall grade695 students13 students per teacher
#12 Private Schools with the Smallest Classes in Winnebago County, IL
Rockford Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
12.7 students per teacher
Rockford, IL
BOverall grade639 students13 students per teacher
#13 Private Schools with the Smallest Classes in Winnebago County, IL
Holy Family Catholic School
Parish school · Grades Pre-K–8
13.4 students per teacher
Rockford, IL
AOverall grade321 students13 students per teacher
#14 Private Schools with the Smallest Classes in Winnebago County, IL
St. Bridget School
Diocesan school · Grades Pre-K–8
14.6 students per teacher
Loves Park, IL
B+Overall grade370 students15 students per teacher
#15 Private Schools with the Smallest Classes in Winnebago County, IL
Christian Life Schools
Assembly of God school · Grades Pre-K–12
14.8 students per teacher
Rockford, IL
B-Overall grade363 students15 students per teacher
From official public records, updated October 2026.