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Federal
2008-2010 NSDUH Substate Region Shapefile
U.S. Department of Health & Human Services —
2008-2010 NSDUH Substate Region Shapefile -
Federal
2010-2012 NSDUH Substate Region Shapefile (.ZIP File Download)
U.S. Department of Health & Human Services —
This shapefile includes geographic boundaries of the 2010-2012 National Survey on Drug Use and Health (NSDUH) substate regions along with small area estimation (SAE)... -
Federal
2014-2016 NSDUH Substate Region Definitions
U.S. Department of Health & Human Services —
Tables, maps, and datafiles defining the substate regions for each state and the District of Columbia.