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Substance Abuse and Mental Health Data Archive (SAMHDA)

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 retricted-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

For more information please visit the FAQ here.

If you have additional questions, please email: rdca@samhsa.hhs.gov.