How much does intended engineering major affect admission chances at UIUC versus Purdue?

At UIUC, your intended engineering major can materially affect your admission odds; at Purdue, it matters far less for initial admission to the College of Engineering. UIUC’s Grainger College of Engineering reviews applicants in the context of their requested major, and capacity differs substantially across programs. Purdue admits most engineering applicants to a common First-Year Engineering program rather than directly to a specific engineering major.

At UIUC, highly constrained fields, particularly computer science and closely related computing programs, tend to draw especially intense competition. Selecting a second-choice major can be useful, but it should be a field you could genuinely see yourself studying, since admission is not simply to “engineering” as a whole. Your coursework, grades, math and science preparation, activities, and writing still matter, but the major’s demand is part of the admissions context.

At Purdue, applicants enter First-Year Engineering and typically apply to move into their degree-granting major after completing foundational coursework. That later placement process can be competitive for majors with limited space, so an applicant should not assume that admission to First-Year Engineering guarantees every major option. Still, choosing mechanical engineering versus civil engineering on the application is not usually the same admissions lever that it is at UIUC.