<p>Studentification is an important component of urban change in university towns and is often embedded within broader sociodemographic transformations in the knowledge economy context. This study applied a Bayesian hierarchical modeling approach to investigate the spatiotemporal patterns of post-secondary students, university graduates, and young adults in a mid-sized university town in Canada between 2011 and 2021, a period marked by both development and disruption. Shared neighborhoods between the three population groups were primarily located near post-secondary campuses and central business districts and were associated with public transit influences. During the COVID-19 pandemic, studentified neighborhoods near campuses saw a notable increase in university graduates and young adults, particularly the latter, suggesting a shift toward increasing youthification as studentification slowed. University graduates and young adults were also linked to transit-oriented development, with youthification intensifying especially along the newly opened light rail transit line between 2016 and 2021, a trend that warrants further examination using post-pandemic data. High-density and high-cost rental housing in neighborhoods occupied by students, university graduates, and young adults may have created barriers for other sociodemographic groups, such as working-class families. This raises concerns about whether current neighborhood planning and transit-oriented development initiatives are achieving their intended goals of fostering inclusive communities.</p>