Principia Giving

Because of the generosity of donors, Principia has been able to provide students strong academic, spiritual, and character education for more than a century.

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    Upper School:


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  3. Amount

  4. Areas to Support

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Thank You

Your support makes great things happen here.

Gift By Check

If you wish to make a gift by check, please make it payable to The Principia and mail it to us at:

The Principia
Annual Fund Office
13201 Clayton Road
St. Louis, MO  63131