Principia School vs. Missouri Military Academy
Should you attend Principia School or Missouri Military Academy? Visitors to our site frequently compare these two schools. Compare their rankings, scores, reviews and more to help you determine which school is the best choice for you.
School Overview
School
Definition of Terms | 2025 School Data
Principia School
13201 Clayton Rd
St. Louis, MO 63131, United States of America
St. Louis, MO 63131, United States of America
Top Rankings
Principia School ranks among the top 20 boarding schools (out of 272 schools) for:
Category
Attribute
School Resources
School Resources
Offering Breadth
Missouri Military Academy ranks among the top 10 schools with 200-400 students (out of 97 schools) for:
Category
Attribute
Community Size
Boarding Focus
Affordability
Affordability
Overview
Imagine a place where opportunity is everywhere, and students are seen as limitless.
At Principia, we believe every student has everything they need to excel in the classroom, on the sports field, up on stage, and out in the community. We simply help uncover their boundless potential.
Much more than a pre-K-12 college-prep day and boarding school in St. Louis, Principia is founded upon principles that see students as boundless and divinely whole.
Grounded in the teachings of Christian Science, a worldwide Christian denomination, Principia welcomes students from all faith backgrounds.
Here, students become critical and creative thinkers who can address challenges through effective problem-solving.
Our 360-acre campus also offers a unique educational experience with beautiful indoor and outdoor learning spaces as well as state-of-the-art athletic facilities and fields.
Adventure and discovery await. Find your purpose at Principia School.
Every boy becomes a man. What kind of man will yours become?
Founded in 1889, Missouri Military Academy (MMA) is a private all-boy college preparatory academy that serves grades 7 through 12 and offers a post-graduate year.
Located in a safe and peaceful setting in rural Missouri, MMA educates young men from around the world who seek college preparatory and career readiness programs in a military structured environment, focused on developing self-confidence and grit.
MMA`s 360 Education promotes academic excellence and success, character development, physical development, personal motivation and leadership training to prepare young men to take command of their personal lives and their future.
School Focus
College Preparatory
College-Prep Military
Grades Offered
8-12
7-12, PG
School Type
Co-ed
All-boys
ADD/ADHD Support
No
No
Year Founded
1898
1889
Campus Size
360 acres
288 acres
Students Body
Enrollment
511
220
% Students of Color
31%
40%
% International Students
17%
25%
% Students Boarding
28%
99%
Average SAT Score
1100
1148
Average ACT score
27
23
Offers Post-Grad Year
No
Yes
Academics and Faculty
Saturday Classes
Yes
No
Frequency of Saturday Classes
Weekly
Weekly
Classroom Dress Code
Casual
Formal
Average Class Size
15
14
Student-Teacher Ratio
8:1
11:1
# of AP/Advanced Courses Offered
26
n/a
ESL Courses Offered
Yes
Yes
% Faculty with Advanced Degree
65%
70%
Summer Program Offered
No
Yes
Finances
Endowment Size
$590 million
$55 million
Tuition (Boarding Students)
$46,530
$39,500
Tuition (Day Students)
$25,010
n/a
Tuition (international students)
$46,530
$39,500
Avg. Financial Aid Grant
$17,000
$18,000
Merit Scholarships Offered
$1
$1
Admission
Application Deadline
Jan. 13 / rolling
None / Rolling
Accepts Standardized Application
Yes
Yes
SSAT Required
Yes
No
Acceptance Rate
62%
65%
Director of Admissions
Ginger Roth
LTC Gregory Seibert
Associate Director of Admissions
Jordan Poznick
Michael Koontz
# of AP/Advanced Courses Offered
26
n/a
Sport
Total Sports Offered
15
21
Sports
BaseballBasketball
CheeringCross Country
Cross Country RunningDance
DivingField Hockey
FootballSoccer
SwimmingTennis
TrackVolleyball
Wrestling
BaseballBasketball
Cross CountryCross Country Running
Drill TeamEquestrian
FootballGolf
MarkmanshipMarksmanship
RidingRiflery
Rock ClimbingSoccer
SwimmingSwimming and Diving
TennisTrack
Track and FieldUltimate Frisbee
Wrestling
Extracurricular
Total Extra-curric.Total Extracurriculars
13
18
Extra-curric.Extracurriculars
Club or Organization:
E-SportsMath Olympiad
Mediation TeamMock Trial
Model United NationsNational Honor Society
Poetry Out LoudRho Kappa Honor Society
Rotary ClubSpeech and Debate
Sustainability ClubTri-M
World Language Club
Club or Organization:
Arts and Music Programs:
Recreational Athletic Programs:
Boy ScoutsInformational Technology Internships
Military PoliceNational Honor Society
WWII Re-enactment Club (Railsplitters)Yearbook
Arts and Music Programs:
ChoirDrum and Bugle Corp
Jazz BandMarching Band
Recreational Athletic Programs:
Drill TeamHorseback Riding
Intramural SportsM Club (Letterman's Club)
MarksmanshipMilitary Skills (Raider)
PaintballWeights and Conditioning Training