In its original American broadcast, "Reunion" was watched by 7.2 million households, according to the Nielsen ratings system. It received a 3.4 rating/8 share among viewers in the 18–49 demographic, meaning that 3.4 percent of all people in that group, and 8 percent of all people from that group watching television at the time, watched the episode. "Reunion" finished in ninth place in the weekly ratings for the week of December 1–7, 2008. Matt Hubbard won the Primetime Emmy Award for Outstanding Writing for a Comedy Series, while Beth McCarthy-Miller received a nomination for Outstanding Directing for a Comedy Series at the 61st Primetime Emmy Awards. This episode was submitted for consideration on the behalf of Tina Fey for Outstanding Lead Actress in a Comedy Series at the same awards show, but lost it to actress Toni Collette. Hubbard was nominated for a Writers Guild of America Award for "Reunion", but lost it in a tie to fellow "30 Rock" writer Robert Carlock for the episode "Apollo, Apollo" and "Modern Family"'s Steven Levitan and Christopher Lloyd for the pilot episode.