Welcome to SAMHDA—the Substance Abuse and Mental Health Data Archive!

The Substance Abuse and Mental Health Services Administration (SAMHSA) and RTI International are proud to launch the redesigned SAMHDA website with new designs, streamlined menus, and simplified navigation. We want to offer our users an easy way to get to the data they need for their analyses.

We encourage legacy and new users to return to the site often to explore the spectrum of available data offerings. We will update and expand our resources, tools, and documentation frequently to deliver the most relevant data for your needs.

The SAMHDA help desk is available to answer questions via the Online Technical Assistance form or by calling 888.741.7242. Need Treatment Help? Visit the SAMHSA site for more information.