@michael_he88 Most boarding schools aren’t - this is what makes schools like Andover stick out. If you’re interested in a full list here’s an old thread: http://talk.collegeconfidential.com/prep-school-admissions/1670166-which-american-high-school-boarding-schools-are-need-blind-for-fa.html (the thread is old so some facts may be outdated, if you look at CC threads you should be able to find an updated list). Being full-pay means that you don’t have to worry about not being accepted because schools can’t meet your demonstrated need, and will not accept you so they don’t have lower yield rates.