Which has stronger undergraduate school spirit: Carnegie Mellon or USC?

The biggest practical difference is that USC’s school spirit is highly visible and athletic-centered, while Carnegie Mellon’s is more niche, tradition-based, and shaped by individual schools, clubs, and project teams. At USC, football weekends, Trojan traditions, rallies, tailgates, and large campus events create a recognizable shared campus culture that involves many students, including plenty who are not varsity athletes. Carnegie Mellon has meaningful traditions too, but its Division III athletics and academically intense, decentralized student life make all-campus participation less constant.

Carnegie Mellon’s strongest spirit often shows up around events such as Spring Carnival, the student-built Buggy races, Booth, and activities tied to programs like drama, computer science, robotics, and design. Those traditions can create unusually close communities, especially among students who throw themselves into an organization or major. The atmosphere is often collaborative, inventive, and proudly quirky rather than loud or sports-focused.

For the specific mix of traditions, athletic events, and broad campus-wide participation in your question, USC has stronger undergraduate school spirit. Carnegie Mellon can feel deeply connected, but that connection is more likely to come from a smaller campus subcommunity and distinctive student-run traditions than from a pervasive, university-wide sports culture.