#1 Private Schools with the Smallest Classes in Lake County, IL
Fusion Academy LF: Chicago- Lake Forest
Alternative school · Grades 6–12
1.8 students per teacher
Lake Forest, IL
AOverall grade45 students2 students per teacher
2026 lists
Private Schools with the Smallest Classes in Lake County, IL
Private schools in Lake County, IL with the fewest students per teacher (not counting preschools and special education schools). Top 26 of 26 schools.
#2 Private Schools with the Smallest Classes in Lake County, IL
Lake Forest Country Day School
Independent school · Grades Pre-K–8
5.1 students per teacher
Lake Forest, IL
A+Overall grade325 students5 students per teacher
#3 Private Schools with the Smallest Classes in Lake County, IL
Woodlands Academy of the Sacred Heart
Independent Catholic school · Grades 9–12
5.3 students per teacher
Lake Forest, IL
A+Overall gradeAll girls120 students5 students per teacher
#4 Private Schools with the Smallest Classes in Lake County, IL
Chesterton Academy of the Immaculate Heart
Independent Catholic school · Grades 9–12
5.8 students per teacher
Volo, IL
AOverall grade46 students6 students per teacher
#5 Private Schools with the Smallest Classes in Lake County, IL
Da Vinci Waldorf School
Independent school · Grades Pre-K–8
5.9 students per teacher
Wauconda, IL
AOverall grade94 students6 students per teacher
#6 Private Schools with the Smallest Classes in Lake County, IL
Lake Forest Academy
Independent school · Grades 9–12
6.6 students per teacher
Lake Forest, IL
A+Overall grade446 students7 students per teacher
#7 Private Schools with the Smallest Classes in Lake County, IL
Montessori School of Lake Forest
Montessori school · Grades Pre-K–8
6.8 students per teacher
Lake Forest, IL
A-Overall grade68 students7 students per teacher
#8 Private Schools with the Smallest Classes in Lake County, IL
Country Meadows Montessori School
Montessori school · Grades Pre-K–8
8 students per teacher
Gurnee, IL
AOverall grade72 students8 students per teacher
#9 Private Schools with the Smallest Classes in Lake County, IL
Lake County Christian Academy
Baptist school · Grades Pre-K–12
9.7 students per teacher
Waukegan, IL
A+Overall grade142 students10 students per teacher
#10 Private Schools with the Smallest Classes in Lake County, IL
Lions Math and Science Christian Academy
Baptist school · Grades K–8
9.9 students per teacher
Waukegan, IL
A-Overall grade82 students10 students per teacher
#11 Private Schools with the Smallest Classes in Lake County, IL
School of St. Mary
Diocesan school · Grades Pre-K–8
11 students per teacher
Lake Forest, IL
A+Overall grade336 students11 students per teacher
#12 Private Schools with the Smallest Classes in Lake County, IL
Gurnee Christian Academy
Seventh-day Adventist school · Grades Pre-K–12
11.2 students per teacher
Gurnee, IL
AOverall grade74 students11 students per teacher
#13 Private Schools with the Smallest Classes in Lake County, IL
St. John Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
11.3 students per teacher
Libertyville, IL
A-Overall grade71 students11 students per teacher
#14 Private Schools with the Smallest Classes in Lake County, IL
Frassati Catholic Academy
Diocesan school · Grades Pre-K–8
11.8 students per teacher
Wauconda, IL
A-Overall grade184 students12 students per teacher
#15 Private Schools with the Smallest Classes in Lake County, IL
St. Francis De Sales School
Diocesan school · Grades Pre-K–8
12 students per teacher
Lake Zurich, IL
AOverall grade276 students12 students per teacher
#16 Private Schools with the Smallest Classes in Lake County, IL
St. Anne Parish School
Diocesan school · Grades Pre-K–8
12.4 students per teacher
Barrington, IL
A-Overall grade215 students12 students per teacher
#17 Private Schools with the Smallest Classes in Lake County, IL
Forest Bluff Montessori School
Montessori school · Grades Pre-K–8
12.5 students per teacher
Lake Bluff, IL
B-Overall grade116 students13 students per teacher
#18 Private Schools with the Smallest Classes in Lake County, IL
St. Anastasia Catholic School
Diocesan school · Grades Pre-K–8
12.6 students per teacher
Waukegan, IL
B+Overall grade178 students13 students per teacher
#19 Private Schools with the Smallest Classes in Lake County, IL
St. Mary School
Parish school · Grades Pre-K–8
14 students per teacher
Buffalo Grove, IL
A-Overall grade184 students14 students per teacher
#20 Private Schools with the Smallest Classes in Lake County, IL
St. Bede Elementary School
Diocesan school · Grades Pre-K–8
14.2 students per teacher
Ingleside, IL
AOverall grade165 students14 students per teacher
#21 Private Schools with the Smallest Classes in Lake County, IL
St. Joseph Catholic School
Parish school · Grades Pre-K–8
15 students per teacher
Libertyville, IL
BOverall grade376 students15 students per teacher
#22 Private Schools with the Smallest Classes in Lake County, IL
Westlake Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
15.9 students per teacher
Grayslake, IL
BOverall grade251 students16 students per teacher
#23 Private Schools with the Smallest Classes in Lake County, IL
St. Gilbert Elementary School
Diocesan school · Grades Pre-K–8
16.4 students per teacher
Grayslake, IL
BOverall grade320 students16 students per teacher
#24 Private Schools with the Smallest Classes in Lake County, IL
St. Patrick School
Diocesan school · Grades Pre-K–8
17.3 students per teacher
Wadsworth, IL
BOverall grade389 students17 students per teacher
From official public records, updated October 2026.