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From infancy through grade 12, your child's educational journey at Principia is guided by those who believe in boundless possibility.
More than a college-prep day and boarding school in St.
Louis, Principia is founded on Christian Science principles that view each student as limitless and divinely whole.
Here, students grow through character education and experiential learning-uncovering natural strengths, developing critical thinking skills, and realizing their full potential.
Our 360-acre campus in Town and Country provides immersive indoor and outdoor spaces where curiosity thrives and creativity takes flight.
Above all, Principia students learn what it means to live with purpose.
You'll see the difference everywhere you look-from innovative, future-ready learning inside and outside the classroom, to a spirit of inclusivity and sportsmanship that defines our community. Principia welcomes students of all faith backgrounds.
Principia School is a place where students thrive and
possibilities unfold-where students are challenged to grow in
character and scholarship, embracing opportunity and pursuing
excellence in a supportive and inclusive environment.
Located in Town and Country, Missouri, Principia School is an
independent, coeducational college preparatory school offering
innovative programs for preschool through grade 12. A beautiful
360-acre campus supports a state-of-the-art educational and
athletic experience, featuring outstanding sports fields and
facilities, and 100+ acres of outdoor teaching spaces. Grounded on
the principles of Christian Science, Principia welcomes students
from a variety of faith backgrounds who value a Christian-based
approach to character development and education.
Through an integrated curriculum defined by rigor, challenge,
and opportunity, students apply critical thinking and
problem-solving skills to global challenges. A Principia education
teaches students to think fearlessly, live selflessly, and learn
purposefully while helping them gain an understanding of the wider
world and how to improve it. Experiential learning opportunities
abound both on campus and beyond through local, national, and
international educational trips.
Learner-centered programs prepare students to succeed in an
ever-changing world by forging deeper connections through authentic
learning experiences, developing and strengthening character, and
cultivating future-ready skills in preparation for college and
beyond.
Principia School's tuition is approximately $24,040 for private students.
What sports does Principia School offer?
Principia School offers 14 interscholastic sports: Baseball, Basketball, Cheering, Cross Country, Dance, Diving, Flag Football, Football, Soccer, Swimming, Tennis, Track and Field, Volleyball and Wrestling. Principia School is ranked as one of the top 20% of private schools in Missouri for most sports offered.
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.
The average private school tuition in Saint Louis, MO is $16,758 for elementary schools and $20,703 for high schools (read more about average private school tuition across the country).
