#1 Fastest-Growing Private Schools in Cook County, IL
Hadi School of Excellence
Islamic school · Grades Pre-K–8
Enrollment up 332% in about a decade
Schaumburg, IL
BOverall grade134 students9 students per teacher
2026 lists
Fastest-Growing Private Schools in Cook County, IL
Private schools in Cook County, IL whose enrollment has grown the most over the past decade. Top 50 of 65 schools.
#2 Fastest-Growing Private Schools in Cook County, IL
German International School Chicago
Independent school · Grades Pre-K–8
Enrollment up 322% in about a decade
Chicago, IL
A+Overall grade135 students6 students per teacher
#3 Fastest-Growing Private Schools in Cook County, IL
Al-Huda Academy
Islamic school · Grades Pre-K–6
Enrollment up 272% in about a decade
Hanover Park, IL
A+Overall grade175 students13 students per teacher
#4 Fastest-Growing Private Schools in Cook County, IL
St. Benedict Preparatory School
Diocesan school · Grades Pre-K–8
Enrollment up 194% in about a decade
Chicago, IL
AOverall grade550 students11 students per teacher
#5 Fastest-Growing Private Schools in Cook County, IL
Depaul College Prep
Independent Catholic school · Grades 9–12
Enrollment up 190% in about a decade
Chicago, IL
A+Overall grade1,245 students11 students per teacher
#6 Fastest-Growing Private Schools in Cook County, IL
Intercultural Montessori Language School
Montessori school · Grades Pre-K–8
Enrollment up 183% in about a decade
Chicago, IL
A+Overall grade133 students4 students per teacher
#7 Fastest-Growing Private Schools in Cook County, IL
Montessori Academy of Chicago
Montessori school · Grades Pre-K–5
Enrollment up 174% in about a decade
Chicago, IL
AOverall grade145 students7 students per teacher
#8 Fastest-Growing Private Schools in Cook County, IL
Parkland Preparatory Academy
Special education school · Grades 1–12
Enrollment up 167% in about a decade
Oak Lawn, IL
B-Overall grade96 students12 students per teacher
#9 Fastest-Growing Private Schools in Cook County, IL
Urban Prairie
Independent school · Grades Pre-K–8
Enrollment up 166% in about a decade
Chicago, IL
A+Overall grade101 students7 students per teacher
#10 Fastest-Growing Private Schools in Cook County, IL
Old St. Marys School
Parish school · Grades K–8
Enrollment up 164% in about a decade
Chicago, IL
A+Overall grade419 students8 students per teacher
#11 Fastest-Growing Private Schools in Cook County, IL
Chicago Jesuit Academy
Independent Catholic school · Grades 3–8
Enrollment up 151% in about a decade
Chicago, IL
A+Overall grade246 students8 students per teacher
#12 Fastest-Growing Private Schools in Cook County, IL
Guardian Angel Orthodox Day School
Greek Orthodox school · Grades Pre-K–8
Enrollment up 151% in about a decade
Des Plaines, IL
BOverall grade193 students9 students per teacher
#13 Fastest-Growing Private Schools in Cook County, IL
Plato Academy
Independent school · Grades Pre-K–8
Enrollment up 151% in about a decade
Des Plaines, IL
AOverall grade93 students6 students per teacher
#14 Fastest-Growing Private Schools in Cook County, IL
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
#15 Fastest-Growing Private Schools in Cook County, IL
Chicago Hope Academy
Christian school (nondenominational) · Grades 9–12
Enrollment up 131% in about a decade
Chicago, IL
AOverall grade291 students12 students per teacher
#16 Fastest-Growing Private Schools in Cook County, IL
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
#17 Fastest-Growing Private Schools in Cook County, IL
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
#18 Fastest-Growing Private Schools in Cook County, IL
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
#19 Fastest-Growing Private Schools in Cook County, IL
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
#20 Fastest-Growing Private Schools in Cook County, IL
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
#21 Fastest-Growing Private Schools in Cook County, IL
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
#22 Fastest-Growing Private Schools in Cook County, IL
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
#23 Fastest-Growing Private Schools in Cook County, IL
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
#24 Fastest-Growing Private Schools in Cook County, IL
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
From official public records, updated October 2026.