HMS is an annual web-based survey study in the United States examining mental health, service utilization, and related issues among undergraduate and graduate students. Since its national launch in 2007, HMS has been fielded at over 180 colleges and universities, with over 200,000 survey respondents. HMS is one of the only annual surveys of college and university populations that focuses exclusively on mental health and related issues, allowing for substantial detail in this area. The study has a special emphasis on understanding service utilization and help-seeking behavior, including factors such as stigma, knowledge, and the role of peers and other potential gatekeepers. The study also allows colleges and universities to examine how mental health symptoms predict academic outcomes (GPA and retention), which is translated into an economic case for mental health services and programs.