Boarding School Review - Established 2003
Chaminade College Preparatory School
Thomas Jefferson School
Missouri Military Academy

Best Missouri Boarding Schools (2026)

For the 2026 school year, there are 3 college-prep and junior boarding schools serving 1,105 students located throughout Missouri.
You can also browse our full boarding school directory or specify additional search criteria.
Chaminade College Preparatory School
Thomas Jefferson School
Missouri Military Academy

Top Missouri Boarding Schools (2026)

Chaminade College Preparatory School Photo - Chaminade is located 20 minutes outside of Downtown St. Louis in the lovely, safe, green neighborhood of Creve Coeur. Our 55 acre campus is fun and lively throughout the school year and a wonderful place not only to study and play but also to become part of the family.
Chaminade College Preparatory School
Gr: 6-12 | 800 students
Student-teacher ratio: 9:1
Avg. class size: 17 students
Tuition listed
All-boys (Catholic)
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
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Missouri Military Academy Photo - Established in 1889, Missouri Military Academy has transformed young men into leaders who are well-educated, prepared gentlemen of character. Our long history and distinct traditions inspire a sense of pride and duty among the young men who seek to fulfill their potential at MMA.
Missouri Military Academy
Gr: 7-12, PG | 220 students
Student-teacher ratio: 11:1
Avg. class size: 14 students
Acceptance rate: 65%
Tuition listed
All-boys (Non-denom. / Christian)
204 Grand Street
Mexico, MO 65265
(573) 581-1776
(6)
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Thomas Jefferson School Photo - TJ sits on 20 picturesque acres in suburban St. Louis, MO.
Thomas Jefferson School
Gr: 7-12 | 85 students
Student-teacher ratio: 6:1
Avg. class size: 14 students
Acceptance rate: 65%
Tuition listed
4100 South Lindbergh Blvd.
Saint Louis, MO 63127
(314) 843-4151
(2)
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Frequently Asked Questions

How many boarding schools are located in Missouri?
There are 3 college-preparatory boarding schools located in Missouri.
What is the average tuition cost of boarding school in Missouri?
The average Missouri boarding school tuition cost is $50,434 per year.
What is the oldest boarding school in Missouri?
Missouri Military Academy, founded in 1889, is the oldest boarding school in Missouri.
What boarding school in Missouri has the lowest acceptance rates?
Missouri Military Academy has the lowest boarding school acceptance rate (65%) in Missouri.
What boarding school in Missouri has the highest average SAT scores?
Thomas Jefferson School has the highest average SAT scores (1450) in Missouri.

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Quick Facts (2026)

  • # Boarding Schools: 3
  • # Students Served: 1,105
  • Average Tuition: $50,434
  • Average Class Size: 15 students
  • % Students Boarding: 50%
  • % International Students: 20%
  • % Students of Color: 36%
  • % Students on Financial Aid: 47%
  • Average SAT Score: 1,299
  • % Faculty w/Advanced Degree: 84%

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