Tracy Jennings, Works at Noodle and here to help!
For 2014-2015, Princeton Graduate School costs $43,720 annually, including the mandatory student health fee. (All graduate students have to pay the same fee, regardless of their program.) In addition, there is an estimated $27,450 for 12 months of living expenses.
So for two years, the total cost is $142,340.
Thankfully, there are many ways to support yourself financially, and Princeton offers generous grant and loan schemes. You can read more about the financials on the Princeton Graduate School website.