St. Louis City Schools

The Principia School

PRIVATE Christian Scientist

  • Grades Served: PK1 – 12
  • 420 Students (Coed)
  • Average Class Size: 18
  • Opened in 1898
  • Teachers with Advanced Degree: 51%
  • Tuition Range: $10,350 - $16,365 Per Year Average tuition for local Private Schools: $9,165
  • Room and board for boarding students not included
  • 30 states and 12 countries represented among the students, 50% of Upper School students are boarders
  • 360-acre campus, 2 well-stocked libraries, 5 science labs, 3 gyms
  • 88% of students who took AP exams in the 2013???????2014 school year scored 3 or above on a scale of 1 to 5
  • Although Principia is not affiliated with the Christian Science Church and Christian Science is not expressly taught, All of students, faculty, and staff are Christian Scientists.
  • AP Classes: 21 different honors/AP classes


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  • Lacks Racial Diversity

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