Objective: The current study tracked attitudinal and behavioral changes related to a campus-wide smoking ban. Participants: Students from 2 colleges in Massachusetts (N = 418; April 2014; N = 640 April 2018). Methods: Surveys tracked students' smoking habits, beliefs about smoking, and attitudes before and four years after the implementation of a campus-wide smoking ban. Results: While student smoking rates and secondhand exposure did drop following the campus-wide ban, they did not drop at a significantly higher rate than the control. However, attitudes toward smoking, perceived smoking, and attitudes toward a campus-wide smoking ban did improve at rates significantly above any improvements shown at the control campus. Conclusions: Campus-wide smoking bans may lower the frequency of smoking on small college campuses, but not necessarily more than other smoking cessation efforts. They do appear to uniquely influence general attitudes and the visibility of smoking on campus.