Westchester is the county where Big Mouth takes place. It is located in the state of New York. Its cities include Yonkers (being the largest city in the county), New Rochelle, Mount Vernon, White Plains, Rye, and Peekskill. It is unknown which specific area the show is set in.
- Yonkers is the fourth largest city in New York.
- Westchester is a nonfictional county, more information about the area can be seen here.