Is Wisconsin or Boston University more selective for undergraduate admissions?

Boston University is more selective for undergraduate admissions than the University of Wisconsin–Madison. In current admissions conversations, BU is typically treated as a private university with a tougher overall admit bar, while Wisconsin–Madison is selective but more accessible overall, especially because it is a large public flagship. For building a reach list, BU usually belongs a tier above Wisconsin in raw selectivity.

One concrete reason is applicant volume relative to class size.

Another differentiator is how each school functions in the market. BU competes directly for many of the same applicants looking at selective urban private universities, so the academic profile of its applicant pool is very compressed at the high end. Wisconsin–Madison is highly respected and can absolutely be a reach for some students, but it has a broader public-university mission and a wider range of admitted students across programs and residency categories.

Residency matters too. Wisconsin is notably more accessible for in-state applicants than for out-of-state applicants, so selectivity can feel very different depending on where you live. BU does not have that public flagship in-state dynamic, so its process is more uniformly competitive across the board.

If you are sorting your list by admissions difficulty alone, place BU above Wisconsin–Madison, while remembering that certain Wisconsin majors or schools can be more competitive than the university-wide picture suggests.