St. Laurence High School

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 Facts (2026)

  • 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

School Overview

Religious Affiliation
Grades Offered
Grades 9-12
Year Founded
1961
Colors
Black, Gold
School Calendar
Campus Size
23 acres

Student Body

Total Students
913 students
Student Body Type
Co-ed
% Students of Color
55%
State avg.: 34%
Students by Grade
St. Laurence High School Student 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
Yearly Tuition Cost
11,700 (2022–2023)
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).

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Quick Facts (2026)

  • Top-Ranked IL School
  • Grades: 9-12
  • Enrollment: 913 students
  • Average class size: 23 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Cook County, IL is $13,557 for elementary schools and $19,341 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Cook County, IL is 83% (read more about average acceptance rates across the country).

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