According to the Ohio State University Office of Institutional Research, the Fall 2021 enrollment of 57,575 students split as follows:
Ohio State's large commuter population reflects its urban Columbus location, extensive regional campuses, and the high cost of on-campus housing relative to off-campus alternatives. The university defines "commuter" as any student not living in university-owned or -affiliated housing.
This ratio has remained relatively stable over the past decade, with commuters consistently comprising 55–58% of the student body.