The Substance Abuse and Mental Health Services Administration (SAMHSA) developed a series of Metro Briefs providing detailed statistical snapshots of substance abuse treatment activities in 27 metropolitan areas, including Seattle, Washington. The reports are based on SAMHSA’s Treatment Episode Data Set (TEDS) which collects information on the characteristics of persons admitted to substance abuse treatment, and the National Survey of Substance Abuse Treatment Services (N-SSATS), an annual survey of treatment facilities. Each brief provides the a wide range of information about the nature and scope of substance abuse treatment admissions in a metropolitan area through a variety of charts, graphs and accompanying text.
Reports for all 27 metro areas are available: http://oas.samhsa.gov/metro/metro.cfm