#25 Best Private High Schools in Illinois
Beacon Academy
Independent school · Grades 9–12
100% of graduates go to four-year colleges
Evanston, IL
A+Overall grade155 students7 students per teacher
2026 lists
Best Private High Schools in Illinois
Private high schools in Illinois with the highest overall grades. Top 50 of 121 schools.
#26 Best Private High Schools in Illinois
Grace Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
95% of graduates go to four-year colleges
Kankakee, IL
A+Overall grade226 students8 students per teacher
#27 Best Private High Schools in Illinois
Gibault Catholic
Diocesan school · Grades 9–12
98% of graduates go to four-year colleges
Waterloo, IL
A+Overall grade192 students12 students per teacher
#28 Best Private High Schools in Illinois
College Preparatory School of America
Islamic school · Grades Pre-K–12
99% of graduates go to four-year colleges
Lombard, IL
A+Overall grade602 students13 students per teacher
#29 Best Private High Schools in Illinois
Mother McAuley Liberal Arts High School
Independent Catholic school · Grades 9–12
92% of graduates go to four-year colleges
Chicago, IL
AOverall gradeAll girls794 students13 students per teacher
#30 Best Private High Schools in Illinois
St. Bede Academy
Independent Catholic school · Grades 9–12
Smaller classes than 80% of Catholic schools in Illinois
Peru, IL
AOverall grade262 students10 students per teacher
#31 Best Private High Schools in Illinois
Fasman Yeshiva High School
Jewish day school · Grades 9–12
Smaller classes than 92% of Jewish day schools in Illinois
Skokie, IL
AOverall gradeAll boys103 students4 students per teacher
#32 Best Private High Schools in Illinois
The Chicago Academy for the Arts
Independent school · Grades 9–12
Smaller classes than 83% of independent schools nationwide
Chicago, IL
AOverall grade148 students4 students per teacher
#33 Best Private High Schools in Illinois
Mooseheart Child City and School
Independent school · Grades K–12
Smaller classes than 88% of independent schools in Illinois
Mooseheart, IL
AOverall grade85 students3 students per teacher
#34 Best Private High Schools in Illinois
Aurora Central Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Aurora
Aurora, IL
AOverall grade452 students12 students per teacher
#35 Best Private High Schools in Illinois
Hinsdale Adventist Academy
Seventh-day Adventist school · Grades Pre-K–12
Serving families in Hinsdale since at least 2011
Hinsdale, IL
AOverall grade160 students11 students per teacher
#36 Best Private High Schools in Illinois
Ida Crown Jewish Academy
Jewish day school · Grades 9–12
100% of graduates go to four-year colleges
Skokie, IL
AOverall grade228 students6 students per teacher
#37 Best Private High Schools in Illinois
Aquin Elementary Junior Senior High School
Parish school · Grades Pre-K–12
Smaller classes than 82% of Catholic schools nationwide
Freeport, IL
AOverall grade127 students7 students per teacher
#38 Best Private High Schools in Illinois
Notre Dame De La Salette Boys Academy
Independent Catholic school · Grades 8–12
Smaller classes than 88% of Catholic schools in Illinois
Georgetown, IL
AOverall gradeAll boys109 students9 students per teacher
#39 Best Private High Schools in Illinois
Althoff Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Belleville
Belleville, IL
AOverall grade335 students15 students per teacher
#40 Best Private High Schools in Illinois
Chicago Hope Academy
Christian school (nondenominational) · Grades 9–12
The largest Christian school in Chicago
Chicago, IL
AOverall grade291 students12 students per teacher
#41 Best Private High Schools in Illinois
Christ Our Rock Lutheran High School
Lutheran (Missouri Synod) school · Grades 9–12
85% of graduates go to four-year colleges
Centralia, IL
AOverall grade104 students8 students per teacher
#42 Best Private High Schools in Illinois
St. Francis High School
Independent Catholic school · Grades 9–12
The only Catholic school in Wheaton
Wheaton, IL
AOverall grade703 students13 students per teacher
#43 Best Private High Schools in Illinois
Lutheran School Association
Lutheran (Missouri Synod) school · Grades Pre-K–12
98% of graduates go to four-year colleges
Decatur, IL
A-Overall grade376 students13 students per teacher
#44 Best Private High Schools in Illinois
St. Francis De Sales High School
Independent Catholic school · Grades 9–12
Smaller classes than 76% of Catholic schools in Illinois
Chicago, IL
A-Overall grade155 students10 students per teacher
#45 Best Private High Schools in Illinois
Bennett Day School
Independent school · Grades Pre-K–12
100% of graduates go to four-year colleges
Chicago, IL
A-Overall grade285 students6 students per teacher
#46 Best Private High Schools in Illinois
Schlarman Academy
Diocesan school · Grades Pre-K–12
The only Catholic school in Danville
Danville, IL
A-Overall grade326 students7 students per teacher
#47 Best Private High Schools in Illinois
Northridge Preparatory School
Independent Catholic school · Grades 6–12
The only all-boys school in Niles
Niles, IL
A-Overall gradeAll boys351 students13 students per teacher
#48 Best Private High Schools in Illinois
Resurrection College Prep High School
Parish school · Grades 9–12
96% of graduates go to four-year colleges
Chicago, IL
A-Overall gradeAll girls454 students14 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.