#1 Private Schools with the Smallest Classes in Will County, IL
Noonan Elementary Academy
Independent Catholic school · Grades Pre-K–8
5.4 students per teacher
Mokena, IL
A+Overall grade191 students5 students per teacher
2026 lists
Private Schools with the Smallest Classes in Will County, IL
Private schools in Will County, IL with the fewest students per teacher (not counting preschools and special education schools). Top 22 of 22 schools.
#2 Private Schools with the Smallest Classes in Will County, IL
Furqaan Academy
Islamic school · Grades Pre-K–12
5.6 students per teacher
Bolingbrook, IL
A+Overall grade178 students6 students per teacher
#3 Private Schools with the Smallest Classes in Will County, IL
St. Joseph Catholic Elementary School
Diocesan school · Grades Pre-K–8
8.6 students per teacher
Manhattan, IL
A+Overall grade142 students9 students per teacher
#4 Private Schools with the Smallest Classes in Will County, IL
Joliet Montessori School
Montessori school · Grades Pre-K–6
9.8 students per teacher
Crest Hill, IL
B+Overall grade47 students10 students per teacher
#5 Private Schools with the Smallest Classes in Will County, IL
Illinois Lutheran High School and Junior High
Lutheran (Wisconsin Synod) school · Grades 7–12
10.2 students per teacher
Crete, IL
B+Overall grade135 students10 students per teacher
#6 Private Schools with the Smallest Classes in Will County, IL
Montessori School of Lemont
Montessori school · Grades Pre-K–9
10.6 students per teacher
Lemont, IL
A-Overall grade95 students11 students per teacher
#7 Private Schools with the Smallest Classes in Will County, IL
Families of Faith Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
11.4 students per teacher
Channahon, IL
B+Overall grade212 students11 students per teacher
#8 Private Schools with the Smallest Classes in Will County, IL
Mother Teresa Catholic Academy
Parish school · Grades Pre-K–8
11.4 students per teacher
Crete, IL
A+Overall grade117 students11 students per teacher
#9 Private Schools with the Smallest Classes in Will County, IL
St. Andrew the Apostle
Diocesan school · Grades Pre-K–8
12 students per teacher
Romeoville, IL
A+Overall grade144 students12 students per teacher
#10 Private Schools with the Smallest Classes in Will County, IL
St. Dennis and Joseph Catholic Academy
Diocesan school · Grades Pre-K–8
12.2 students per teacher
Lockport, IL
B+Overall grade169 students12 students per teacher
#11 Private Schools with the Smallest Classes in Will County, IL
St. Jude School
Diocesan school · Grades Pre-K–8
12.6 students per teacher
New Lenox, IL
B+Overall grade162 students13 students per teacher
#12 Private Schools with the Smallest Classes in Will County, IL
St. Mary Immaculate Parish School
Diocesan school · Grades Pre-K–8
12.9 students per teacher
Plainfield, IL
AOverall grade303 students13 students per teacher
#13 Private Schools with the Smallest Classes in Will County, IL
Lupine Montessori School
Montessori school · Grades Pre-K–9
13 students per teacher
Lockport, IL
BOverall grade65 students13 students per teacher
#14 Private Schools with the Smallest Classes in Will County, IL
St. Paul the Apostle School
Diocesan school · Grades K–8
13.3 students per teacher
Joliet, IL
A+Overall grade145 students13 students per teacher
#15 Private Schools with the Smallest Classes in Will County, IL
Trinity Christian School
Christian school (nondenominational) · Grades Pre-K–8
14.8 students per teacher
Shorewood, IL
BOverall grade304 students15 students per teacher
#16 Private Schools with the Smallest Classes in Will County, IL
Joliet Catholic Academy
Independent Catholic school · Grades 9–12
15.5 students per teacher
Joliet, IL
BOverall grade598 students16 students per teacher
#17 Private Schools with the Smallest Classes in Will County, IL
Cathedral of St. Raymond School
Parish school · Grades Pre-K–8
15.8 students per teacher
Joliet, IL
BOverall grade277 students16 students per teacher
#18 Private Schools with the Smallest Classes in Will County, IL
St. Mary Elementary School
Diocesan school · Grades Pre-K–8
16.1 students per teacher
Mokena, IL
B-Overall grade384 students16 students per teacher
#19 Private Schools with the Smallest Classes in Will County, IL
Providence Catholic High School
Diocesan school · Grades 9–12
16.7 students per teacher
New Lenox, IL
B-Overall grade754 students17 students per teacher
#20 Private Schools with the Smallest Classes in Will County, IL
St. Jude Catholic School
Diocesan school · Grades Pre-K–8
16.9 students per teacher
Joliet, IL
BOverall grade171 students17 students per teacher
#21 Private Schools with the Smallest Classes in Will County, IL
St. Mary Nativity School
Parish school · Grades Pre-K–8
17.4 students per teacher
Joliet, IL
B+Overall grade139 students17 students per teacher
#22 Private Schools with the Smallest Classes in Will County, IL
Illinois Lutheran Elementary School
Lutheran (Wisconsin Synod) school · Grades Pre-K–6
17.9 students per teacher
Crete, IL
BOverall grade125 students18 students per teacher
From official public records, updated October 2026.