Larry David richest comedian in America, worth $900 million

David, who also created and starred in the TV show "Curb Your Enthusiasm," has a personal fortune of $900 million, while Seinfeld follows close behind with $800 million. 

Coming in at No.  3 is talk-show host David Letterman with $390 million, followed by comedian-author-actor Bill Cosby at No.  4 with $360 million and actor-producer Adam Sandler at No.  5 with $290 million.