If this site is right: http://www.vaporia.com/sports/wcpage.html The answer is that there are roughly 335 NCAA Div I Women's Basketball teams.
120 in football, 330+ in basketball, 61 in lacrosse, it really depends on the sport
There are currently 347 teams in NCAA Division 1 Basketball.
There are 346 mens basketball teams in the NCAA Division I.
348 schools spread throughout 32 conferences with 7 independents
There are 347 schools in 32 Division I basketball conferences.
1,000 schools participate at the NCAA division 2
they all have nicknames