As of 2021, the National Mental Health Services Survey (N-MHSS) and the National Survey of Substance Abuse Treatment Services (N-SSATS) were merged into the National Substance Use and Mental Health Services Survey (N-SUMHSS). You can access data files from N-MHSS and N-SSATS, collected before the merge, on the N-SUMHSS data collection page.
COMBINED MENTAL HEALTH & SUBSTANCE USE COLLECTIONS
NOTE: National Survey of Substance Abuse Treatment Services (N-SSATS) and National Mental Health Services Survey (N-MHSS) data before 2021 can be accessed in N-SUMHSS.
MENTAL HEALTH COLLECTIONS
NOTE: National Mental Health Services Survey (N-MHSS) data before 2021 can be accessed in N-SUMHSS.
SUBSTANCE USE COLLECTIONS
NOTE: National Survey of Substance Abuse Treatment Services (N-SSATS) data before 2021 can be accessed in N-SUMHSS.
Use SAMHSA
Data Tools
Data Analysis System (DAS)
Explore and analyze data from MH-CLD, NSDUH, TEDS, and N-SUMHSS collections, examining study variables and running crosstab analyses.
Go to DAS
Interactive NSDUH Small Area Estimates (SAE)
Visualize and compare mental health and substance use issues across states or regions, track changes over time, and explore related variables.
Go to SAE
Quick Statistics
Get access to mental health and substance use data to quickly compare statistics, track trends, and explore issues across various populations.
View Quick Statistics
Scientific Integrity
We reaffirm our commitment to maintaining the highest level of scientific integrity in producing official statistics. Together, the Principles and Practices, Statistical Policy Directives and Standards, and Information Quality Guidelines form the foundation for achieving and maintaining scientific integrity within and among the principal statistical agencies.