Substance Abuse and Mental Health Data Archive (SAMHDA)
SAMHDA is a one-stop shop for SAMHSA public use data with online analysis tools. Open the SAMHDA one pager link Learn more about different types of data files, what data are available as free downloadable PUFs, and what online analysis systems are available on the site.
Analyze Our data
We have two data analysis systems (PDAS for public use and the restricted-use RDAS) available for researchers. As part of PDAS, there is also a NSDUH SAE tool to quickly see data by state and substate areas.
Download Public Use Files
We make datasets available for public use in multiple formats: ASCII, SAS, SPSS, Stata, R, and TSV. Select a study series to go to the SAMHDA site to download files.
Get Access: NSDUH Restricted-use Data
SAMHSA has partnered with the National Center for Health Statistics (NCHS) to host restricted-use National Survey on Drug Use and Health (NSDUH) data at their Federal Statistical Research Data Centers (RDCs). RDCs are secure facilities that provide access to a range of restricted-use microdata for statistical purposes. SAMHSA is the most recent federal partner to work with NCHS in making NSDUH restricted-use microdata available to approved researchers at RDC sites.
Eligible Researchers Apply Now
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