"11/9" was watched by 2.13 million people during its original broadcast, and gained a 1.1 ratings share among adults aged 18–49. The episode has been critically acclaimed. On the review aggregator
Rotten Tomatoes, "11/9" holds a 100% approval rating, based on 16 reviews with an average rating of 8.19 out of 10.
Tony Sokol of
Den of Geek gave the episode a 4 out of 5, saying "The episode may not be enough to convert new fans to
American Horror Story: Cult, but to those preaching to the choir, the Kool-Aid is refreshing." He particularly praised the presence and the development of Peters' Kai Anderson; but also Lourd's performance as Winter, describing her as a "master mind manipulator". Kat Rosenfield from
Entertainment Weekly gave the episode a B+, and appreciated that it was a break from the character of Ally and her "hysterical screaming breakdowns". Moreover, she praised Adina Porter and her acting skills, saying "she's the best thing to happen to this cast since we lost La Lange"."
Vulture's Brian Moylan gave the episode a 4 out of 5, indicating a positive review. Like Rosenfield, he praised Adina Porter, calling her a "genius", but also the plot twist of the third act of the episode. Matt Fowler of
IGN gave the episode an 8.3 out of 10, with a positive review. He said "[this episode] revealed crucial backstory and a fun twist that could greatly alter the story going forward. It was staged nicely, separated into three acts—with the third providing a new element that helps add texture to the entire season. It was also fun to watch the "cult" of
Cult actually form, and to see some of the side characters be real(ish) people outside of the facade they put on for the sake of Ally and Ivy." ==References==