This report presents results from the Mental Health Client Level Data (MH-CLD) and Mental Health Treatment Episode Data Set (MH-TEDS) for individuals receiving mental health treatment services in 2016, as well as selected trends in data collected from such individuals between 2013 and 2016. The report provides information on mental health diagnoses, mental health treatment services, and demographic and substance use characteristics of individuals in mental health treatment in facilities that reported to individual state administrative data systems.