Mississippi Boarding Schools

Located in Bay St. Louis, Saint Stanislaus High School is an all-boys college-preparatory boarding school for grades 7-12 with 342 students.
At Saint Stanislaus High School, tuition is $33,450 and 37% of students receive financial aid. Classes average 17 students.

Quick Facts (26-27)

  • # Boarding Schools: 1
  • # Students Served: 342

Quick Facts (26-27)

  • # Boarding Schools: 1
  • # Students Served: 342

Top Mississippi Boarding Schools (2026-27)

Saint Stanislaus High School Photo - We make the most of our location right on the Bay, developing unique programs, clubs, and activities for our students to enjoy. Our scuba and sailing clubs enjoy time in the water, while our environmental club focuses on care for our oceans, too.
Gr: 7-12 | 342 students
Student-teacher ratio: 9:1
Avg. class size: 17 students
Acceptance rate: 82%
Tuition listed
All-boys (Catholic)
304 S. Beach Blvd.
Bay St. Louis, MS 39520
(228) 467-9057

Historical Statistics Overview

This State (MS)
US (avg. per state)
# Schools
1 School
6.4 Schools

Showing 2016–2025. Full 12-year historical data available below ↓

# Students
342 Students
2,517 Students

Showing 2016–2025. Full 12-year historical data available below ↓

Academics and Faculty

South Region*
US
* Fewer than 3 schools in Mississippi report these figures, so the South regional average is shown.
Average Student-Teacher Ratio
8:1
8:1

Showing 2016–2025. Full 12-year historical data available below ↓

% Faculty with Advanced Degree
67%
69%

Showing 2016–2025. Full 12-year historical data available below ↓

Academic Programs

South Region*
US
* Fewer than 3 schools in Mississippi report these figures, so the South regional average is shown.
Avg. AP Courses
23
22

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. IB Courses
32
28

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Class Size
13
13

Showing 2016–2025. Full 12-year historical data available below ↓

Academic Performance

South Region*
US
* Fewer than 3 schools in Mississippi report these figures, so the South regional average is shown.
Avg. SAT Score
1232
1271
Avg. ACT Score
26
27

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Acceptance Rate
64%
59%

Showing 2016–2025. Full 12-year historical data available below ↓

Tuition and Finances

South Region*
US
* Fewer than 3 schools in Mississippi report these figures, so the South regional average is shown.
Avg. Tuition (Boarding)
$58,423
$64,455

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Tuition (Day)
$29,034
$38,004

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Tuition (International)
$60,474
$62,450

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Financial Aid Rate
49%
42%

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Financial Aid Grant
$21,503
$27,075

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Endowment
$62 MM
$84 MM

Showing 2016–2025. Full 12-year historical data available below ↓

Student Diversity

South Region*
US
* Fewer than 3 schools in Mississippi report these figures, so the South regional average is shown.
% Students of Color
28%
30%

Showing 2016–2025. Full 12-year historical data available below ↓

% International Students
18%
27%

Showing 2016–2025. Full 12-year historical data available below ↓

% Boarding Students
54%
59%

Showing 2016–2025. Full 12-year historical data available below ↓

Download state snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.

Frequently Asked Questions

How many boarding schools are located in Mississippi?
There is 1 college-preparatory boarding schools located in Mississippi.
What is the oldest boarding school in Mississippi?
Saint Stanislaus High School, founded in 1854, is the oldest boarding school in Mississippi.

Recent Articles

Boarding School Size vs. Class Size: What Matters More?
Boarding School Size vs. Class Size: What Matters More?
Does boarding school size matter more than class size? Explore how enrollment affects friendships, dorm life, activities, academic support, and student belonging before choosing the right boarding school environment.
Teacher Office Hours and Academic Help at Boarding Schools
Teacher Office Hours and Academic Help at Boarding Schools
Explore how boarding school students access teachers, office hours, evening tutoring, and academic support. Learn what parents should ask about availability, supervision, scheduling conflicts, and help when students struggle academically.
Boarding School Academic Schedule Flexibility
Boarding School Academic Schedule Flexibility
Discover how boarding schools handle full classes, scheduling conflicts, waitlists, and alternative courses. Learn what parents should ask to protect academic progress, graduation requirements, and college preparation before enrolling their child.

Featured Schools