Fourth-richest: Princeton University
Endowment funds last year: $17.1 billion
Change from previous year: 18.9%
Students last fall: 7,859
Undergraduate tuition: $54,780 for the estimated cost of attendance in the coming 2012-13 academic year, including tuition, room and board.

Princeton University, with the second-highest tuition rate for undergraduates on this list, also has the smallest student body. That means its endowment can be spent more on capital projects than many of the schools on this list, though the institution decided last year that it would keep spending at 4% to 5.75% per year to allow the fund to generate income through investments.

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