I created a nationwide file of 2015 vintage Census tracts and block groups for a project.   If anyone wants them, they can be found at http://www.northarrow.org/data.html

Mara

Mara Kaminowitz, GISP
GIS Coordinator
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Baltimore Metropolitan Council
Offices @ McHenry Row
1500 Whetstone Way
Suite 300
Baltimore, MD  21230
410-732-0500 ext. 1030
mkaminowitz@baltometro.org
www.baltometro.org