The list would include, but not be limited to:
Vince Carter (New Jersey Nets) - turned 32 in 2009
Kobe Bryant (Los Angeles Lakers) - turned 31 in 2009
Kevin Durant (Oklahoma City Thunder) - turned 31 in 2009
Steve Nash (Phoenix Suns) - turned 35 in 2009
Tim Duncan (San Antonio Spurs) - turned 33 in 2009
Michael Jordan is about as active as they come
Earl Boykins. He is 5'5"
It is far less than 1%. There are roughly 900 teams in college basketball, with an average of about 12-13 players per team, not included inactive players, which means over 10,000 players per year. There are roughly 360 active NBA players. The NBA is for the truly elite.
Twelve active players are allowed to be on an NBA roster during each individual game.
An NBA team is only permitted to have a maximum of 15 players (with 12 active and the rest surving as injury reserves).
UCLA has 14 active players http://www.uclabruins.com/sports/m-baskbl/spec-rel/062809aab.html
I counted and found 40 of 492 players at 7'0 or over in the NBA in 2008.
The 3rd oldest active player is P.J. Brown of the Boston Celtics.
Shaquille O'Neal, Kobe Bryant
NBA players live all over America. I think that most of them live near their teams, though.
Prob Yao Ming -- 7'6"
become a nba sports analyst or start a business
Derek Fisher & Kobe Bryant, both with 5
Kobe Bryant and Derek Fisher with 5