Or via social:

School Overview

Located on a beautiful, 360-acre campus in Town and Country, Missouri, Principia is a place where possibilities unfold. We know our students come to us with everything they need to succeed, we simply uncover their potential as we challenge them to grow in character and scholarship.
Principia School Information 2025 | FindingSchool

Gallery
Principia School Principia School Principia School Principia School Principia School
If you would like to add Principia School to your favorites, compare it with other schools, or share it with friends, here are some quick links.

School Stats

Average
Current School
Tuition
$25,010
Enrollment
489
Teacher-Student Ratio
1:7

Academics

Basic Info

Co-ed
Day School Grades: PreK-12
Rural
IB: No
Year Founded: 1898
Campus Size: 360 acres
Religious Affiliation: Christian

Application Info

Recommended
Recommended
Boarding
McCallie School United States Flag

Frequently Ask Questions about Principia School

Tell me a bit about Principia School.
Principia School is Co-ed private day school located in Missouri, US. It was founded 1898 , and currently has about 489 students.

For more official information, please visit https://www.principiaschool.org/.
Does Principia School have rigorous academic requirements?
We are collecting academic data from Principia School, but don't have the data yet. Please check back later.
Where do Principia School students typically go for their colleges?
We don't have matriculation data of Principia School yet, please check back later.
What is the application requirement for Principia School?
Similar to most private schools in the US, Principia School’s typical admission requirements include school transcript, recommendation letter, application essay, and interview (often optional, but highly recommended).
What is the Day Tuition for Principia School?
The day tuition for Principia School in 2024 is $25,010 For international students, there are additional fees, such as student management fee and other fees associated with managing international students.

For more information, please contact school’s admission team at jordan.poznick@principia.edu .
Where is Principia School located?
Principia School is located in the State of Missouri of USA. The closest major city is St. Louis, which is about 11 miles away from school. Most families can choose Louis Lambert International Airport to travel in and out of school.
How popular is Principia School on the FindingSchool network?
Based on FindingSchool monthly traffic data as well as onsite search record, Principia School is within top 30000 for all schools on FindingSchool.

How do I complete an application for Principia School?
The first stop is to carefully review the school profile on FindingSchool to learn more about Principia School. Most of them are directly provided by the school.

Also it is highly recommended to visit Principia School’s official site: https://www.principiaschool.org/ or call them at 314-434-2100.
Are there additional schools that are located close to Principia School?
Yes, here are few: Chaminade College Prep School, Mary Institute & St. Louis Country Day School and Whitfield School.

The closest major city is St. Louis. You can find out more schools near St. Louis here.
What is the FindingSchool rating for Principia School?
We are sorry but FindingSchool hasn't rated Principia School yet, please check back later.

Nearby City

St. Louis, Missouri, sits along the Mississippi River at the state’s eastern border, near its meeting point with the Missouri River. Covering 61.74 square miles, its boundaries have been unchanged since 1876. Known as the "Gateway to the West," St. Louis was central to U.S. westward expansion, symbolized by the Gateway Arch—a 630-foot stainless steel structure and the world’s tallest monument—located in the 86-acre Gateway Arch National Park along the downtown riverfront. Operating independently from any county under Missouri's laws, St. Louis adopted its charter in 1923, following incorporation as a town in 1809 and as a city in 1823, a governance structure still in place today.

Population (2022) 281,754
Cost of Living Higher than average 0%
FindingSchool collects its data from multiple sources, including schools, advisors, official U.S. statistics, and feedback from actual parents and students.
Feedback
Compare()
()