#1 Largest Private Schools in Joliet, IL
Joliet Catholic Academy
Independent Catholic school · Grades 9–12
598 students
Joliet, IL
BOverall grade598 students16 students per teacher
2026 lists
Largest Private Schools in Joliet, IL
The private schools in Joliet, IL with the most students. Top 7 of 7 schools.
#2 Largest Private Schools in Joliet, IL
Cathedral of St. Raymond School
Parish school · Grades Pre-K–8
277 students
Joliet, IL
BOverall grade277 students16 students per teacher
#3 Largest Private Schools in Joliet, IL
St. Jude Catholic School
Diocesan school · Grades Pre-K–8
171 students
Joliet, IL
BOverall grade171 students17 students per teacher
#4 Largest Private Schools in Joliet, IL
St. Paul the Apostle School
Diocesan school · Grades K–8
145 students
Joliet, IL
A+Overall grade145 students13 students per teacher
#5 Largest Private Schools in Joliet, IL
St. Mary Nativity School
Parish school · Grades Pre-K–8
139 students
Joliet, IL
B+Overall grade139 students17 students per teacher
#6 Largest Private Schools in Joliet, IL
Ucp-CDS-Melvin J Larson School
Special education school · Grades K–12
34 students
Joliet, IL
A-Overall grade34 students7 students per teacher
#7 Largest Private Schools in Joliet, IL
Hopewell Career Academy - Joilet
Special education school · Grades 9–12
29 students
Joliet, IL
B+Overall grade29 students9 students per teacher
From official public records, updated October 2026.