A lot of them. There are 336 division 1 teams.
As of the 2007 season, there are 119 Division 1A teams in the NCAA.
Division 2, Gannon University in Erie, PA.
There are currently 347 teams in NCAA Division 1 Basketball.
NCAA Division 1 Basketball teams
There are 338 teams within 37 conferences
There are 346 mens basketball teams in the NCAA Division I.
346 teams in 32 conferences plus 4 independent schools.
D1 Basketball is Division 1 with all of the Major NCAA Teams.
NCAA Division III is made up of 444 member institutions. It is the largest NCAA division. It has more participants (about 170,000 student-athletes) and number of schools than any other NCAA division. There are 413 NCAA Division III Men's Basketball teams and 434 Women's teams.