At least two-thirds of college students graduate with some debt

The average debt among college graduates exceeds $19,000. One-fourth of all students borrow $25,000 or more. These statistics were last published by the U.S. Department of Education in 2004, so they understate current student debt.

Source
US Department of Education. National Postsecondary Student Aid Study . US Department of Education. [Online] [Cited: July 17, 2008.] http://nces.ed.gov/surveys/npsas/.