#25 Most Diverse Private Schools in Cook County, IL
St. Hilary School
Diocesan school · Grades Pre-K–8
Largest group: 43% of students
Chicago, IL
A+Overall grade109 students9 students per teacher
2026 lists
Most Diverse Private Schools in Cook County, IL
Private schools in Cook County, IL with the most varied mix of students. Top 50 of 282 schools.
From official public records, updated October 2026.