St. Lawrence Seminary High School

301 Church Street
Mt. Calvary, WI 53057
St. Lawrence Seminary High School is located on 150+ acres in the rolling hills of central Wisconsin.
The center of the campus is located atop a prominent "Hill" that serves as part of our challenging cross-country course.
Eleven buildings fill the "Hill", from the traditional main building, Laurentianum, where the original St. Lawrence College met, to the beautiful, modern Chapel. These buildings hold everything the students need for daily life, including, but not limited to the Chapel, classrooms, computer lab, dorms, a gym, racquetball courts, a fitness center, a bowling alley, a store, the library, the dining hall, an auditorium and many other facilities.
Along and below the hill are two soccer fields, five tennis courts, a toboggan run and room for all kinds of "pick-up" games.

Quick Facts (2026)

  • Grades: 9-12
  • Enrollment: 140 students
  • Yearly Tuition (Boarding Students): $17,300
  • Acceptance rate: 89%
  • Average class size: 13 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

School Overview

Definition of Terms | 2025 School Data
St. Lawrence Seminary High School
Boarding School Avg.
School Focus
College Preparatory
College Preparatory
Grades Offered
9-12
9-12
School Type
Co-ed
Religious Affiliation
Non-denominational
Year Founded
1860
1909
Campus Size
150 acres
125 acres
Colors
White, Brown, Gold

Student Body

Enrollment
140 students
300 students
% Students of Color
75%
25%
% International Students
25%
20%
% Students Boarding
100%
70%
Offers Post-Grad Year
No
No

Academics and Faculty

Saturday Classes
No
No
Classroom Dress Code
Casual
Average Class Size
13 students
12
* National Avg. »18
Student-Teacher Ratio
6:1
7:1
# of AP / Advanced Courses Offered
2
17
ESL Courses Offered
No
Yes
% Faculty with Advanced Degree
40%
70%
Summer Program Offered
No
Yes

Tuition Cost

Yearly Tuition
(Boarding Students)
$17,300
$59,900
Yearly Tuition
(Day Students)
n/a
$33,500
% Students on Financial Aid
65%
40%
Merit Scholarships Offered
No
No

Admissions

Application Deadline
None / Rolling
Jan. 15
SSAT Required
Yes
Yes
Acceptance Rate
89%
58%
Director of Admissions
Francisco Sauceda

College Matriculation

10 Most Popular College Choices  (# Enrolled)

School Notes

  • St. Lawrence Seminary High School accreditations: Cognia
  • School Motto: College Prep. Spiritual Depth.
  • School Mascot: Hilltopper
Source: Verified school update

Frequently Asked Questions

How much does St. Lawrence Seminary High School cost?
St. Lawrence Seminary High School's tuition is approximately $17,300 for boarding students.
What is the acceptance rate of St. Lawrence Seminary High School?
The acceptance rate of St. Lawrence Seminary High School is 89%, which is higher than the boarding school average of 58%.
When is the application deadline for St. Lawrence Seminary High School?
The application deadline for St. Lawrence Seminary High School is rolling (applications are reviewed as they are received year-round).
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Quick Facts (2026)

  • Grades: 9-12
  • Enrollment: 140 students
  • Yearly Tuition (Boarding Students): $17,300
  • Acceptance rate: 89%
  • Average class size: 13 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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