#25 Best Private Schools in Illinois
Frances Xavier Warde School
Independent Catholic school · Grades 4–8
Smaller classes than 80% of Catholic schools in Illinois
Chicago, IL
A+Overall grade426 students9 students per teacher
2026 lists
Best Private Schools in Illinois
Private schools in Illinois with the highest overall grades. Top 50 of 579 schools.
#26 Best Private Schools in Illinois
St. Mary School
Diocesan school · Grades Pre-K–8
Smaller classes than 78% of Catholic schools in Illinois
Elgin, IL
A+Overall grade111 students10 students per teacher
#27 Best Private Schools in Illinois
Naperville Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
The smallest classes of any Christian school in Naperville
Naperville, IL
A+Overall grade126 students6 students per teacher
#28 Best Private Schools in Illinois
St. Constance School
Parish school · Grades Pre-K–8
Smaller classes than 76% of Catholic schools in Illinois
Chicago, IL
A+Overall grade116 students10 students per teacher
#29 Best Private Schools in Illinois
Josephinum Academy of the Sacred Heart
Independent Catholic school · Grades 9–12
Smaller classes than 98% of Catholic schools in Illinois
Chicago, IL
A+Overall gradeAll girls90 students5 students per teacher
#30 Best Private Schools in Illinois
Fenwick High School
Parish school · Grades 9–12
The largest Catholic school in Oak Park
Oak Park, IL
A+Overall grade1,024 students12 students per teacher
#31 Best Private Schools in Illinois
Depaul College Prep
Independent Catholic school · Grades 9–12
One of the 3 largest Catholic schools in Illinois
Chicago, IL
A+Overall grade1,245 students11 students per teacher
#32 Best Private Schools in Illinois
St. Marys School
Parish school · Grades Pre-K–8
The smallest classes of any Catholic school in Bloomington
Bloomington, IL
A+Overall grade125 students10 students per teacher
#33 Best Private Schools in Illinois
Lycee Francais De Chicago
Independent school · Grades Pre-K–12
98% of graduates go to four-year colleges
Chicago, IL
A+Overall grade687 students6 students per teacher
#34 Best Private Schools in Illinois
St. Edward School
Parish school · Grades Pre-K–8
Smaller classes than 62% of Catholic schools in Illinois
Chicago, IL
A+Overall grade232 students11 students per teacher
#35 Best Private Schools in Illinois
SS Peter & Paul School
Parish school · Grades Pre-K–8
Smaller classes than 78% of Catholic schools in Illinois
Cary, IL
A+Overall grade167 students10 students per teacher
#36 Best Private Schools in Illinois
St. Hilary School
Diocesan school · Grades Pre-K–8
Smaller classes than 81% of Catholic schools in Illinois
Chicago, IL
A+Overall grade109 students9 students per teacher
#37 Best Private Schools in Illinois
St. Matthew School
Diocesan school · Grades Pre-K–8
Smaller classes than 91% of Catholic schools in Illinois
Glendale Heights, IL
A+Overall grade75 students8 students per teacher
#38 Best Private Schools in Illinois
Our Lady of Grace
Diocesan school · Grades Pre-K–8
Smaller classes than 81% of Catholic schools in Illinois
East Moline, IL
A+Overall grade86 students9 students per teacher
#39 Best Private Schools in Illinois
Everest Academy
Independent Catholic school · Grades Pre-K–8
Smaller classes than 93% of Catholic schools in Illinois
Lemont, IL
A+Overall grade164 students7 students per teacher
#40 Best Private Schools in Illinois
St. Germaine School
Parish school · Grades Pre-K–8
The smallest classes of any Catholic school in Oak Lawn
Oak Lawn, IL
A+Overall grade173 students12 students per teacher
#41 Best Private Schools in Illinois
Lansing Christian School
Calvinist school · Grades Pre-K–8
Smaller classes than 83% of Christian schools in Illinois
Lansing, IL
A+Overall grade90 students6 students per teacher
#42 Best Private Schools in Illinois
Mother Teresa Catholic Academy
Parish school · Grades Pre-K–8
The only Catholic school in Crete
Crete, IL
A+Overall grade117 students11 students per teacher
#43 Best Private Schools in Illinois
Christian Heritage Academy
Christian school (nondenominational) · Grades Pre-K–12
91% of graduates go to four-year colleges
Northfield, IL
A+Overall grade441 students9 students per teacher
#44 Best Private Schools in Illinois
St. Catherine Laboure School
Parish school · Grades Pre-K–8
The only Catholic school in Glenview
Glenview, IL
A+Overall grade134 students10 students per teacher
#45 Best Private Schools in Illinois
St. Gerald School
Diocesan school · Grades Pre-K–8
Serving families in Oak Lawn since at least 2011
Oak Lawn, IL
A+Overall grade233 students13 students per teacher
#46 Best Private Schools in Illinois
St. Andrew the Apostle
Diocesan school · Grades Pre-K–8
The only Catholic school in Romeoville
Romeoville, IL
A+Overall grade144 students12 students per teacher
#47 Best Private Schools in Illinois
The School of Saints Faith, Hope & Charity
Diocesan school · Grades Pre-K–8
Smaller classes than 94% of Catholic schools in Illinois
Winnetka, IL
A+Overall grade222 students6 students per teacher
#48 Best Private Schools in Illinois
St. Luke School
Diocesan school · Grades Pre-K–8
The only Catholic school in River Forest
River Forest, IL
A+Overall grade247 students10 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.