| School Name | Street Address | City | State |
| Perkiomen School |
200 Seminary Street
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Pennsburg | PA |
| Phillips Academy Top 25 |
180 Main Street
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Andover | MA |
| Phillips Exeter Academy Top 25 |
20 Main Street
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Exeter | NH |
| Pomfret School |
398 Pomfret Street, P.O. Box 128
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Pomfret | CT |
| Portsmouth Abbey School |
285 Cory's Lane
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Portsmouth | RI |
| Proctor Academy |
P.O. Box 500 , 204 Main Street
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Andover | NH |
| Purnell School |
51 Pottersville Road, P.O. Box 500
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Pottersville | NJ |
| Putney School |
Elm Lea Farm, 418 Houghton Brook Road
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Putney | VT |