In Pixar’s Monsters, Inc., what is the name of the city where the monsters live?

In Pixar’s Monsters, Inc., the monsters live in the city of Monstropolis.

Monstropolis is the film’s main urban setting and the home of Monsters, Incorporated, the company that processes children’s screams. The city is designed as a large, colorful metropolitan environment with skyscrapers, roads, factories, neighborhoods, and public services built for monsters.

The name combines “monster” with “metropolis,” making its meaning easy to recognize internationally. Much of the story takes place inside the Monsters, Inc. factory, but the wider city helps establish that the characters belong to a complete monster society rather than living only in a workplace.

Monstropolis is sometimes confused with the human world on the other side of the closet doors. The film presents those worlds as connected through factory doors, but Monstropolis itself is the monsters’ realm. The city also appears in related Pixar material and the prequel Monsters University, which expands the setting’s college and community life.