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Join us on campus and experience all that Principia has to offer. We’d love to meet you!

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From the Principal

Being a Principian means learning how to think clearly, vigorously, fearlessly, tolerantly, and unselfishly.

Welcome message

“What if . . . ?” That simple question, posed to a few Upper School teachers, planted a seed that quickly blossomed into an extraordinary collaboration and...

Back in the mid-1800s, when the pioneers set off on the Oregon Trail from Missouri, it took about five months to make the grueling 2,000-mile expedition by...

Principia School
at a Glance

The program, the people, the place . . .
Take a quick look at Principia School.

Fast Facts

Get into the Zone

It’s not unusual to find Principia students lying under their desks or propped up in a bean bag with a good book in hand. Peek into the “reading zone” with our fifth-graders as they grow their love of literature.

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Learn, Grow, Play . . .
and Live Here

Boarding at Principia provides so many opportunities for growth and friendship—and prepares students for life well after high school.

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