23
32 States are represented
19
32
29
27
29 States are represented along with the District of Columbia
applesauce
applesauce
In 2013, assuming that's what you mean by "this year," the NCAA Men's basketball tournament included teams from 31 states and the District of Columbia.
The 2012 NCAA men's basketball tournament included teams from 31 states and the District of Columbia.
19
All 50 ~unfortunatly, i highly doubt it~