St. Mary School serves 171 students in grades Prekindergarten-6, is a member of the National Catholic Educational Association (NCEA).
The student:teacher of St. Mary School is 19:1 and the school's religious affiliation is Catholic.
Quick Facts (2025-26)
- Top Ranked IL School
- Grades: Prekindergarten-6
- Enrollment: 171 students
- Yearly Tuition: $25,000
- Acceptance rate: 25%
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
St. Mary School ranks among the top 20% of private schools in Illinois for:
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-6
Last Day of School
Mon. May 25, 2026
Student Body
Total Students
171 students
Student Body Type
Co-ed
Students by Grade

Academics and Faculty
Total Classroom Teachers
9 teachers
Student-Teacher Ratio
19:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
$25,000
Acceptance Rate
25%
National avg.: 81%
Endowment Size
$50 million
School Notes
- School Motto: 'Truth and Honor'
- School Mascot: Wild Boars
- Sample of notable school alumni/alumnae:
- John Doe, Nobel Laureate -
- Jane Smith, Oscar Winner -
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
How much does St. Mary School cost?
St. Mary School's tuition is approximately $25,000 for private students.
What is the acceptance rate of St. Mary School?
The acceptance rate of St. Mary School is 25%, which is lower than the national average of 84%. St. Mary School's acceptance rate is ranked among the top private schools in Illinois with low acceptance rates.
Who are famous alumni from St. Mary School?
St. Mary School famous alumni include: John Doe, Nobel Laureate and Jane Smith, Oscar Winner.
What is St. Mary School's ranking?
St. Mary School ranks among the top 20% of private schools in Illinois for: Lowest average acceptance rates and Largest endowments.
When is the application deadline for St. Mary School?
The application deadline for St. Mary School is rolling (applications are reviewed as they are received year-round).
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