Which residential college does Rory join at Yale after her first year?

Rory Gilmore joins Branford College at Yale after her first year.

Rory initially lives in Durfee Hall during her first year at Yale. At the beginning of her sophomore year, she moves to Branford College, one of Yale University's residential colleges. The move is significant because Branford is also associated with her grandfather, Richard Gilmore, who lived there during his time at Yale.

At Branford, Rory shares a room with Paris Geller, her former Chilton rival and later Yale roommate. Their forced proximity turns an academic rivalry into one of the show's more unusual college friendships. The residential-college setting gives the series a new environment after Rory leaves Stars Hollow.

A common mix-up is to answer Yale itself, which is the university, or Durfee Hall, which is Rory's earlier residence. Branford College is the specific residential college she moves into during her sophomore year.