The Largest Universities in Arizona

What this ranking shows about Arizona

Arizona is the 8th largest US jurisdiction by total enrolment, teaching 3% of all reported US students. More than half of the 95 institutions reporting enrolment here are private for-profit (58 of them), largely small career and online schools, which is why Arizona reports so many institutions while its median enrolment stays low.

Ranking by total enrolment puts institutions with large online programmes above institutions with larger physical campuses, because a virtual student body is not limited by classrooms or housing. A list of the biggest campuses by students physically present would order differently, and neither list is more correct, because they answer different questions. Enrolment here is the total headcount an institution reported to the federal OPE reporting cohort, which counts undergraduate and graduate students together and makes no distinction between full-time and part-time study. A university with a very large part-time or continuing-education population can therefore outrank one with more students on campus on any given weekday.

The incident-rate column is here because institution size changes how a raw incident count should be read, not because a larger university is more or less safe. Two institutions with the same number of reported incidents are not comparable if one enrols five times as many students, so the column expresses incidents per thousand enrolled. A rate still reflects reporting practice as much as underlying risk: an institution that encourages reporting and investigates thoroughly can record more incidents than one that does neither, and that is the opposite of what a naive reading suggests. Institutions where most students study online show diluted rates, because the denominator counts students who never set foot on a campus. Read the column as context for the size ranking, never as a safety verdict, and see our methodology for how both figures are assembled. For the same institutions ranked by cost rather than size, see the cheapest colleges rankings, or browse every institution we hold a record for.