Founded in 1961, St. Laurence is a Catholic, college preparatory school conducted by the Congregation of Irish Christian Brothers.
St. Laurence continues to recognize the needs of a newer generation of students and provides an excellent Christian preparation for life.
St. Laurence also provides a balanced curriculum that is responsive to the needs of our students while offering up-to-date technology, facilities, labs, and an environment necessary for learning.
Our success is the direct result of the Christian Brothers, faculty and staff working together.
The reputation, standards and image of St. Laurence allow us to offer a blend of the very best academic programs, Christian values, athletic programs and social experiences.
Quick Stats (2025)
- Top Ranked IL School
- Grades: 9-12
- Enrollment: 913 students
- Average class size: 23 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Laurence High 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 9-12
Year Founded
1961
Colors
Black, Gold
School Calendar
First Day of School
Fri. Aug 15, 2025
Campus Size
23
Student Body
Total Students
913 students
Student Body Type
Co-ed
% Students of Color
55%
State avg.: 34%
Students by Grade

Academics and Faculty
Total Classroom Teachers
62 teachers
Student : Teacher Ratio
15:1
National avg.: 13:1
Average Class Size
23 students
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Application URL
School Notes
- School Motto: A Place of Transformation
- School Mascot: Igor The Viking And Astrid The Viking
Source: Verified school update
Frequently Asked Questions
What is St. Laurence High School's ranking?
St. Laurence High School ranks among the top 20% of private schools in Illinois for: Largest student body.
When is the application deadline for St. Laurence High School?
The application deadline for St. Laurence High School is rolling (applications are reviewed as they are received year-round).
School Reviews
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