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2016-2018 NSDUH Substate Region Definitions
HealthData.Gov
Updated Oct 29, 2026
About this dataset
Use these maps and tables to understand the geographic boundaries used in the2016-2018 National Surveys on Drug Use and Health (NSDUH) substate estimates. The resource is available as a PDF or HTM file. There is also additional documentation in SAS and Excel.
Data and resources (1)
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Official Government Data Source
Visit the original government dataset for complete information, documentation, and data access.
Modified Apr 29, 2026