The event took place at Kourtney Kardashian's Calabasas home, which she recently purchased from Justin Bieber.
North West officially turned one on June 15, but as the date fell on Father's Day, the family opted for a quiet day at the Children's Museum of Manhattan. Kim, 33, shared some pics from the Kardashian "Kidchella," Instagramming a photo of the birthday girl, writing: "Our baby girl's 1st birthday party! #kidchella"
Check out some more pics and videos from North's birthday bash, below:
Khloe Kardashian: "Hitting up #Kidchella with my bestie Zeplin."
Khloe Kardashian: "Ray of clouds. Chirping of birds. Gurgling of water. Granting desire. One with water. #Kidchella my first Coachella!!!"