Application Process

If you are interested in applying, we look forward to receiving your application! This web site will guide you through the application process.

When to apply – The best time to apply for the following fall is before June 1. However, you can apply anytime, even after school has begun.

We are not able to accept international students requiring a school provided visa to our Middle School.

Fill out all material and send to:

Admissions Office
The Principia
13201 Clayton Road
St. Louis, MO 63131
(800) 218-7746