Didn't know that existed. Looking through there, the answer to the question seems to be, most founders come from Top 20 Universities with heavy weighting towards Top 5.

thanks for the link, i think this is the best possible answer to the question “does yc accept $people_like_me?”. I love how open yc is about stuff like this - I just learned that 3 people from one of my UK universities were yc founders at some point! (southampton university)