St. Louis Priory School

Saint Louis Priory School is a faith-centered, Catholic, independent day school for boys in grades seven through twelve offering a nationally recognized accelerated curriculum designed to qualify its graduates for admission to distinguished colleges and universities and to prepare them to undertake their continuing studies with success.
The school represents the primary work of the Benedictine monks of Saint Louis Abbey, founded in 1955 by monks of Ampleforth Abbey in York, England.
In addition to one of the strongest college preparatory programs in the area, the school seeks to ground young men in the knowledge and practice of the Roman Catholic faith, supported by the highest percentage of religious teaching faculty of any Catholic high school in Saint Louis.
In addition to providing a comprehensive program of studies in the humanities, sciences and theology, the curriculum requires participation in athletics, fine arts, community service and a senior thesis.
Most students undertake college-level work in their last two years, and many receive college placement and credit through the College Board Advanced Placement (AP) Program offered in over a dozen subject areas.
The school is located on a 150-acre campus in West Saint Louis County.
Nearly 25% of the student body receives financial aid. Reverend Michael Brunner, O.S.B. is Headmaster. Tom Mulvihill 80 is Director of Admission.

Quick Stats (2025)

  • Top Ranked MO School
  • Grades: 7-12
  • Enrollment: 331 students
  • Yearly Tuition: $16,536
  • Average class size: 18 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Top Rankings

St. Louis Priory School ranks among the top 20% of private schools in Missouri for:

School Overview

Student Body

Total Students
331 students
Student Body Type
% Students of Color
11%
State avg.: 21%
Students by Grade
St. Louis Priory School Student By Grade

Academics and Faculty

Total Classroom Teachers
47 teachers
Student : Teacher Ratio
7:1
National avg.: 13:1
% Faculty w/Advanced Degree
80%
Average Class Size
18 students
Number of AP Courses
13 courses

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Lunch fee and book charges are not included in tuition cost.
% on Financial Aid
25%
Average Financial Aid Grant
$7,800
Admissions Director
Tom Mulvihill
Admissions Associate
Brother Cassian Koenemann, OSB

School Notes

  • Saint Louis Priory School is a faith-centered, Catholic, independent day school for boys in grades seven through twelve offering a nationally recognized accelerated curriculum designed to qualify its graduates for admission to distinguished colleges and universities and to prepare them to undertake their continuing studies with success. The school represents the primary work of the Benedictine monks of Saint Louis Abbey, founded in 1955 by monks of Ampleforth Abbey in York, England. In addition to one of the strongest college preparatory programs in the area, the school seeks to ground young men in the knowledge and practice of the Roman Catholic faith, supported by the highest percentage of religious teaching faculty of any Catholic high school in Saint Louis. In addition to providing a comprehensive program of studies in the humanities, sciences and theology, the curriculum requires participation in athletics, fine arts, community service and a senior thesis. Most students undertake college-level work in their last two years, and many receive college placement and credit through the College Board Advanced Placement (AP) Program offered in over a dozen subject areas. The school is located on a 150-acre campus in West Saint Louis County. Nearly 25% of the student body receives financial aid. Reverend Michael Brunner, O.S.B. is Headmaster. Tom Mulvihill 80 is Director of Admission.
Source: Verified school update

Frequently Asked Questions

How much does St. Louis Priory School cost?
St. Louis Priory School's tuition is approximately $16,536 for private students.
What is St. Louis Priory School's ranking?
St. Louis Priory School ranks among the top 20% of private schools in Missouri for: Highest percentage of faculty with advanced degrees and Largest student body.
When is the application deadline for St. Louis Priory School?
The application deadline for St. Louis Priory School is rolling (applications are reviewed as they are received year-round).

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Quick Stats (2025)

  • Top Ranked MO School
  • Grades: 7-12
  • Enrollment: 331 students
  • Yearly Tuition: $16,536
  • Average class size: 18 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Saint Louis, MO is $17,755 for elementary schools and $19,963 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Saint Louis, MO is 83% (read more about average acceptance rates across the country).

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