St. Marys is dedicated to giving children a good academic and religious education.
The instructional staff is comprised of highly qualified and certified lay people as well as priests from St. Marys Parish, and Sisters from the Convent of St. Francis of the Martyr St. George.
There are currently over 340 students enrolled in the school, which offers classes from Kindergarten through eighth grade.
St. Mary's also has a 3- and 4-year-old pre-school program, which runs half-day instructional classes.
Quick Facts (2026)
- Top-Ranked IL School
- Grades: Prekindergarten-8
- Enrollment: 337 students
- Yearly Tuition: $6,130
- Average class size: 15 students
- 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:
Category
Attribute
Student Body
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
School Calendar
Last Day of School
Fri. May 15, 2026
Student Body
Total Students
337 students
Student Body Type
Co-ed
% Students of Color
50%
State avg.: 34%
Students by Grade
Academics and Faculty
Total Classroom Teachers
22 teachers
Student-Teacher Ratio
15:1
National avg.:
Average Class Size
15 students
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Application URL
School Notes
- School Motto: Educating Hearts and Minds.
- St. Marys is dedicated to giving children a good academic and religious education. The instructional staff is comprised of highly qualified and certified lay people as well as priests from St. Marys Parish, and Sisters from the Convent of St. Francis of the Martyr St. George. There are currently over 340 students enrolled in the school, which offers classes from Kindergarten through eighth grade. St. Mary's also has a 3- and 4-year-old pre-school program, which runs half-day instructional classes.
- Sample of notable school alumni/alumnae:
- Mike Adams, Professional Football Player
- Terry Adams, MLB Player
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
How much does St. Mary School cost?
St. Mary School's tuition is approximately $6,130 for private students.
Who are famous alumni from St. Mary School?
St. Mary School famous alumni include: Mike Adams, Professional Football Player and Terry Adams, MLB Player.
What is St. Mary School's ranking?
St. Mary School ranks among the top 20% of private schools in Illinois for: Largest student body.
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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