Business Insider recently put together a list of the 50 most expensive private schools in the United States and The Millbrook School came in at #37. With only 284 students enrolled, The Millbrook School will cost you a pretty hefty $42,125 dollars. But hey, it's got the Trevor Zoo, the only zoo located on a high school campus in the entire country!

A good portion of the most expensive private schools are located in New York, Massachusetts, and Connecticut. Check out the whole list HERE

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