#25 Fastest-Growing Private Schools in Illinois
Everest Academy
Independent Catholic school · Grades Pre-K–8
Enrollment up 145% in about a decade
Lemont, IL
A+Overall grade164 students7 students per teacher
2026 lists
Fastest-Growing Private Schools in Illinois
Private schools in Illinois whose enrollment has grown the most over the past decade. Top 50 of 139 schools.
#26 Fastest-Growing Private Schools in Illinois
Quad Cities Christian School Elementary
Christian school (nondenominational) · Grades Pre-K–5
Enrollment up 141% in about a decade
Moline, IL
A+Overall grade130 students9 students per teacher
#27 Fastest-Growing Private Schools in Illinois
Unity Christian School
Christian school (nondenominational) · Grades K–12
Enrollment up 137% in about a decade
Fulton, IL
BOverall grade140 students9 students per teacher
#28 Fastest-Growing Private Schools in Illinois
Chicago Hope Academy
Christian school (nondenominational) · Grades 9–12
Enrollment up 131% in about a decade
Chicago, IL
AOverall grade291 students12 students per teacher
#29 Fastest-Growing Private Schools in Illinois
Southwest Chicago Christian Schools Associaiton
Christian school (nondenominational) · Grades Pre-K–12
Enrollment up 128% in about a decade
Palos Heights, IL
BOverall grade756 students14 students per teacher
#30 Fastest-Growing Private Schools in Illinois
Bishop McNamara Catholic School
Diocesan school · Grades Pre-K–12
Enrollment up 119% in about a decade
Kankakee, IL
B-Overall grade807 students16 students per teacher
#31 Fastest-Growing Private Schools in Illinois
St. Johns Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–9
Enrollment up 114% in about a decade
Mattoon, IL
B-Overall grade361 students16 students per teacher
#32 Fastest-Growing Private Schools in Illinois
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Enrollment up 114% in about a decade
Stewardson, IL
BOverall grade90 students18 students per teacher
#33 Fastest-Growing Private Schools in Illinois
Science Academy of Chicago
Independent school · Grades Pre-K–8
Enrollment up 106% in about a decade
Mount Prospect, IL
BOverall grade266 students9 students per teacher
#34 Fastest-Growing Private Schools in Illinois
Gurnee Christian Academy
Seventh-day Adventist school · Grades Pre-K–12
Enrollment up 106% in about a decade
Gurnee, IL
AOverall grade74 students11 students per teacher
#35 Fastest-Growing Private Schools in Illinois
Daystar Academy
Christian school (nondenominational) · Grades Pre-K–12
Enrollment up 104% in about a decade
Chicago, IL
A+Overall grade271 students7 students per teacher
#36 Fastest-Growing Private Schools in Illinois
Chicago Jewish Day School
Jewish day school · Grades Pre-K–8
Enrollment up 102% in about a decade
Chicago, IL
BOverall grade196 students6 students per teacher
#37 Fastest-Growing Private Schools in Illinois
Wheaton Montessori School
Montessori school · Grades Pre-K–9
Enrollment up 102% in about a decade
Wheaton, IL
B+Overall grade119 students12 students per teacher
#38 Fastest-Growing Private Schools in Illinois
Mid-America Preparatory School
Pentecostal school · Grades K–12
Enrollment up 102% in about a decade
Herrick, IL
AOverall grade91 students8 students per teacher
#39 Fastest-Growing Private Schools in Illinois
Frassati Catholic Academy
Diocesan school · Grades Pre-K–8
Enrollment up 96% in about a decade
Wauconda, IL
A-Overall grade184 students12 students per teacher
#40 Fastest-Growing Private Schools in Illinois
Esperanza Therapeutic School
Special education school · Grades 3–12
Enrollment up 94% in about a decade
Chicago, IL
B+Overall grade64 students11 students per teacher
#41 Fastest-Growing Private Schools in Illinois
St. Thomas Catholic School
Diocesan school · Grades Pre-K–8
Enrollment up 92% in about a decade
Philo, IL
BOverall grade140 students13 students per teacher
#42 Fastest-Growing Private Schools in Illinois
St. Nicholas Cathedral School
Diocesan school · Grades Pre-K–8
Enrollment up 91% in about a decade
Chicago, IL
BOverall grade183 students14 students per teacher
#43 Fastest-Growing Private Schools in Illinois
Yeshivas Meor Hatorah of Chicago
Jewish day school · Grades 9–12
Enrollment up 91% in about a decade
Chicago, IL
BOverall gradeAll boys65 students6 students per teacher
#44 Fastest-Growing Private Schools in Illinois
Logos Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Enrollment up 90% in about a decade
Niles, IL
BOverall grade249 students9 students per teacher
#45 Fastest-Growing Private Schools in Illinois
Lutheran School of St. Luke
Lutheran (Missouri Synod) school · Grades Pre-K–8
Enrollment up 88% in about a decade
Itasca, IL
B+Overall grade75 students10 students per teacher
#46 Fastest-Growing Private Schools in Illinois
Sacred Heart Elementary School
Diocesan school · Grades Pre-K–8
Enrollment up 87% in about a decade
Effingham, IL
A-Overall grade157 students11 students per teacher
#47 Fastest-Growing Private Schools in Illinois
Joan Dachs Bais Yaakov Elementary School
Jewish day school · Grades Pre-K–8
Enrollment up 86% in about a decade
Chicago, IL
B-Overall gradeAll girls844 students15 students per teacher
#48 Fastest-Growing Private Schools in Illinois
Sager Solomon Schechter Day School
Jewish day school · Grades Pre-K–8
Enrollment up 86% in about a decade
Northbrook, IL
BOverall grade393 students7 students per teacher
From official public records, updated October 2026.