Which has a stronger campus community: Boston University or Washington University in St. Louis?

Washington University in St. Louis is more likely to feel like a single, cohesive campus community. Its Danforth Campus has a traditional residential-college setting, and many students spend substantial time on or near campus through residence halls, student organizations, campus events, and a centralized social scene. Boston University has an active student body and abundant ways to connect, but its experience is more urban, spread out, and self-directed.

A student who wants their friends, clubs, dining, and weekend plans to overlap in one recognizable campus environment may find WashU more natural. Its clubs, cultural organizations, service groups, and residence-hall life tend to be important social anchors.

BU fits students who want community without giving up the energy and independence of Boston. Its campus runs along Commonwealth Avenue and blends directly into the city, so students often build close communities through a particular school or major, dorm, club, research lab, or interest group rather than through the entire undergraduate population. There is plenty of involvement, including major student organizations and events, but classmates may disperse across Boston for internships, jobs, restaurants, concerts, and social plans.

For the priority you describe, WashU has the clearer edge. BU can be deeply social, especially for students who actively join organizations early, but WashU more consistently provides the built-in, residential sense of belonging associated with a traditional campus community.