Metropolitan areas of Mexico have been traditionally defined as the group of municipalities that heavily interact with each other, usually around a core city, in Mexico. The phenomenon of metropolization in Mexico is relatively recent, starting in the 1940s. Because of an accelerated level of urbanization in the country, the definition of a metropolitan area is reviewed periodically by the Mexican population and census authorities.

Greater Mexico City is the conurbation around Mexico City, officially called the Metropolitan Area of the Valley of Mexico. It encompasses Mexico City itself and 60 adjacent municipalities of the State of Mexico and Hidalgo.