Tuition & Tuition Assistance
2021-2022 Tuition
Serving children from infancy through grade 12, Principia School is a student-centered, future-focused coeducational day and boarding school grounded on the teachings of Christian Science. We welcome students of diverse faiths who value scholarship and are eager to grow in character, embrace opportunity, and pursue excellence.
| Upper School (9-12) | |
| Day Student | $20,900 |
| Boarding Student | $38,900 |
| Middle School (6-8) | |
| Day Student | $18,200 |
| Boarding Student (7-8) | $36,200 |
| Lower School (K-5) | $13,000 |
| Pre-School | |
| PS3 (5 Full Days) | $11,000 |
| PS3 (3 Full/5 Half) | $7,000 |
| PS3 (3 Half Days) | $5,500 |
| PS4 (5 Full Days) | $11,000 |
| PS 4 (5 Half Days) | $7,000 |
Note: US, MS, LS, & PS Tuition figures include tuition, activity and tech fees, lunch, field trips, and PPA dues. Tuition assistance is available for PS3 through 12th grade.
| Early Learning Center | |
| Full-time care | $1,000/month |
| Half-time care | $550/month |
| Full-day drop in | $65/day (4.5 hours or more) |
| Half-day drop in | $35/day (less than 4.5 hours) |
| Elsah Bus | $990 / year |
Tuition Assistance
We are committed to building a community of learners, and that means making a Principia education affordable for all qualified students preschool–grade 12.
Financial aid is based on demonstrated need and comes in the form of grants, not loans. Applications are completed online via the School & Student Services (SSS) website. There is a $55 application fee. Financial aid applications follow the same admission application deadlines. Admittance and financial aid decisions are communicated at the same time. Contact Krista Capp, Director of Financial Aid at 314.514.3142 or krista.capp@principia.edu for additional questions.
Financial-aid applications for fall 2022 will be available on October 4, 2021.
Application Deadlines
| January 2022 applications for domestic applicants | November 20, 2021 |
| Early Admission grade 9* | December 10, 2021 |
| Early Admission grades 6–12* | January 11, 2022 |
| Early Admission preschool through grade 5 | January 28, 2022 |
| International Applicants grades 9–12 | February 1, 2022 |
| Priority Admission Applicants* — all levels | April 1, 2022 |
| Late Admission Applicants — all levels | June 20, 2022 |
* (scholarships available)
Adhering to these application deadlines is essential for financial aid consideration.
Questions About Financial Aid or Scholarships? Contact Us.
Financial Aid: Krista Capp, 314.514.3142. Contact Krista.
Scholarships: Adriane Fredrikson, 314.514.3130. Contact Adriane.
For Level Specific Financial Aid Information
Applying for Aid
New International Students
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Complete and submit the Principia International Financial Aid Application at the same time as the application for admission.
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Submit at least two of the following:
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Most recent tax form
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Most recent monthly bank statement
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Verification of income
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New Domestic Applicants
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Complete and submit the SSS Financial Aid Application
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Review How to Apply for step-by-step instructions for completing the application
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Our school code is – 5908 (or you can enter “Principia School”)
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Provide 2020 tax documents
Contact Student Support Services (SSS) at 800.344.8328 or sss@communitybrands.com.
Scholarships
New applicants who meet Principia's April 1 application deadline are automatically considered for the following scholarships:
Arthur F. Schulz Jr. Merit Scholarship
- One-time value: $3,000
- Eligibility: First-time Upper School students who are the children and/or grandchildren of Principia alumni
- Renewable value: Covers tuition and room costs (excluding boarding meals or fees)
- Eligibility: First-time Upper School boarding students
- One-time value: $3,000
- Eligibility: First-time Middle and Upper School students