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Principia School

Upper School Admissions

Applications for Upper School open in September. We encourage you to apply early to guarantee your spot if admitted as well as having access to scholarships and tuition assistance (early & priority admission). 

A minimum 2.5 GPA is required for admission.

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Application Dates & Deadlines

Fall 2024–25 Deadlines:

  • December 8: Early admission (grade 9)
  • January 9: Early admission (grades 10–12)
  • January 11: International admission (grades 9–12)
  • April 1: Priority admission
  • June 3: Late admission

A complete application includes:

  • In-person visit

  • Online application including parent, student, supplemental sections

  • Official transcript and school records, including any standardized testing results from applicant’s current school

  • Recommendations from current teachers

  • Christian Science or character references

  • Results of the SSAT assessment, using Principia's code 2319

  • Student & Family interview

A $50 application fee is required, plus additional testing fees for the MAP assessment or SSAT.

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International Students

International applications are now closed for the 2024–2025 academic year. Visit our International Students page for more information. Below is a snapshot of our process and criteria.

Living that amounts to anything is the kind of living that turns other people to God. If our lives serve this purpose, then our living is worthwhile.

Education at The Principia, p. 125

“Your child should not just survive high school but thrive in it. I look forward to sharing with you what makes Principia a place of growth and opportunity.”

Jordan Poznick
Senior Associate Director of Admission 
Upper School
314.514.3194