We examine patterns of students switching into and out of colleges, STEM/non-STEM fields, and majors within fields, examining the impact of both discipline and demographics. Our data include over fifteen years of student records, with over 22,000 students graduating with an identifiable degree. Restricting the analysis to graduates removes issues of readiness and retention, instead focusing on issues of environment and pathways. We find statistical significance in switching rates of students in colleges of engineering, computer science and applied science and "paths" between colleges that students are more likely to follow as they switch majors. Correlation between persistence within a program and student demographics -- gender, ethnicity, and deaf/hard-of-hearing status -- is strongest in STEM colleges of engineering, computing and applied science and non-STEM colleges of health science and liberal arts. Connections are seen between colleges of engineering and applied science and between biology (within the College of Science) and non-clinical health sciences, and large- scale trends in switching are seen to have changed over time.