#25 Largest Private Schools in Saint Louis, MO
Immacolata School
Diocesan school · Grades Pre-K–8
264 students
Saint Louis, MO
B-Overall grade264 students13 students per teacher
2026 lists
Largest Private Schools in Saint Louis, MO
The private schools in Saint Louis, MO with the most students. Top 50 of 83 schools.
From official public records, updated October 2026.