It has the largest single campus: http://en.wikipedia.org/wiki/List_of_United_States_university_campuses_by_enrollment http://en.wikipedia.org/wiki/List_of_Unit

It has the largest single campus: http://en.wikipedia.org/wiki/List_of_United_States_university_campuses_by_enrollment http://en.wikipedia.org/wiki/List_of_United_States_universit... However, if you include online universities, the University of Phoenix is bigger. And if you allow lumping of multiple campuses together, Penn State is bigger. But even then, ASU is #3 http://en.wikipedia.org/wiki/List_of_the_largest_United_States_colleges_and_universities_by_enrollment http://en.wikipedia.org/wiki/List_of_the_largest_United_Stat...