Quick Facts (2025-26)
- Grades: 9-12, PG
- Application Deadline: None / Rolling
- Source: Verified school update
School Overview
School Focus
College Preparatory
College Preparatory
School Type
Co-ed
Co-ed
Student Body
Offers Post-Grad Year
Yes
No
Academics and Faculty
Saturday Classes
Yes
No
Frequency of Saturday Classes
Weekly
Monthly
Tuition Cost
Yearly Tuition
(ÌÇÐÄvlog¹ÙÍø Students)
(ÌÇÐÄvlog¹ÙÍø Students)
n/a
$68,420
Yearly Tuition
(Day Students)
(Day Students)
n/a
$37,600
Admissions
Source: Verified school update
Frequently Asked Questions
When is the application deadline for Principia School?
The application deadline for Principia School is rolling (applications are reviewed as they are received year-round).
Nearby ÌÇÐÄvlog¹ÙÍø Schools
The nearest boarding school to Principia School is Chaminade College Preparatory School (3.7 miles away)
School
Location
Miles
Quick Facts
Chaminade College Preparatory School![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 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.")
(Catholic)
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
St. Louis, MO 63131
(314) 692-6645
3.7 miles
Gr: 6-12 | 800 students Student-teacher ratio: 9:1 Avg. class size: 17 students Tuition listed
4100 South Lindbergh Blvd.
Saint Louis, MO 63127
(314) 843-4151
Saint Louis, MO 63127
(314) 843-4151
7.4 miles
Gr: 7-12 | 88 students Student-teacher ratio: 6:1 Avg. class size: 15 students Acceptance rate: 70% Tuition listed
204 Grand Street
Mexico, MO 65265
(573) 581-1776
Mexico, MO 65265
(573) 581-1776
84 miles
Gr: 7-12, PG | 220 students Student-teacher ratio: 11:1 Avg. class size: 14 students Acceptance rate: 65% Tuition listed
804 Dr Robert K Wallace Drive
Fairfield, IA 52556
(641) 472-9400
Fairfield, IA 52556
(641) 472-9400
183 miles
Gr: 9-12 | PK-12 (day) | 184 students Student-teacher ratio: 5:1 Avg. class size: 12 students Acceptance rate: 70% Tuition listed
Saint Bede Academy![Saint Bede Academy Photo - With an average student population of 300, our small class sizes offer students one-on-one interaction with their instructors.]( "Saint Bede Academy Photo - With an average student population of 300, our small class sizes offer students one-on-one interaction with their instructors.")
(Catholic)
24 W US Highway 6
Peru, IL 61354
(815) 250-0285
Peru, IL 61354
(815) 250-0285
200 miles
Gr: 9-12 | 293 students Student-teacher ratio: 12:1 Avg. class size: 18 students Acceptance rate: 80% Tuition listed
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