23 but a that's rough guess cos more join every year
32
32 States are represented
Ohio. Ohio has 5 teams in the tourney
29
27
23
31
applesauce
applesauce
The 2012 NCAA men's basketball tournament included teams from 31 states and the District of Columbia.
29 States are represented along with the District of Columbia
49 out of the 50 states are represented in NCAA Division I Men's Basketball (Alaska is not). Of those 49 states, 18 were not represented in the 2012 NCAA Division I Men's Basketball Tournament. They are listed below.ArizonaArkansasDelawareGeorgiaHawaiiIdahoIllinoisLouisianaMaineMinnesotaNew HampshireNew JerseyNorth DakotaOklahomaOregonRhode IslandSouth CarolinaWyoming