Location: Lawrenceville, New Jersey
Tuition and fees: $46,989
Enrollment: 246
At just under $47,000 a year (which includes the required tuition refund insurance at .85% of the tuition), The Lawrenceville School is, once again, the most expensive private school on our list.
But according to the school's website, the actual cost of a Lawrenceville education is $70,000 a year which, when you consider abroad trips to a choice of 13 different countries, the seminar-style Harkness teaching model, and sustainable dining services, means both students and parents are getting their moneys' worth.
Methodology: Rankings are based on tuition and fees for daytime-only students in grades 9 through 12 for the 2014-2015 school year. Boarding-only schools and special-needs high schools were not included.