St. Petronille School provides a quality educational environment that integrates Catholic beliefs and values while providing each student the opportunity to develop his/her full potential.
Our mission is to teach as Jesus did by modeling His message to all living beings and responding to His word through prayer, love, compassion, service, and forgiveness.
We strive to prepare our students for a life of spiritual, academic, social, physical, and emotional fulfillment.
We at St. Petronille School, a ministry of St. Petronille Parish, believe that the primary purpose of our Catholic School is to take an active role in the teaching mission of the Church.
We believe in fostering a community of believers who manifest their faith in service to others.
We believe in the goals of teaching message (doctrine), developing community (family), encouraging service (involvement), and promoting worship as directed in the National Catholic Directory.
We believe in the education of the whole child ' spiritual, intellectual, physical, social, personal, and emotional through a planned, sequential curriculum that lends itself to diverse learning styles.
We believe in academic excellence based on the individual's potential.
We believe in fostering respect for one's self and others and taking responsibility for one's actions.
We believe in instilling responsibility for good stewardship, both on the local and global levels.
Quick Stats (2025)
- Top Ranked IL School
- Grades: Prekindergarten-8
- Enrollment: 521 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
St. Petronille 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
Student Body
Total Students
521 students
Student Body Type
Co-ed
% Students of Color
10%
State avg.: 34%
Students by Grade

Academics and Faculty
Total Classroom Teachers
28 teachers
Student : Teacher Ratio
19:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
What schools are St. Petronille School often compared to?
St. Petronille School is often viewed alongside schools like St. James The Apostle School by visitors of our site.
What is St. Petronille School's ranking?
St. Petronille School ranks among the top 20% of private schools in Illinois for: Largest student body.
When is the application deadline for St. Petronille School?
The application deadline for St. Petronille School is rolling (applications are reviewed as they are received year-round).
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