Cuautitlán and Greater Mexico City are both towns in what Metropolitan Area?
Cuautitlán: Cuautitlán (] ) is a city and municipality in the State of Mexico, just north of the northern tip of the Federal District (Distrito Federal) within the Greater Mexico City urban area. Greater Mexico City:  For normative purposes, however, Greater Mexico City most commonly refers to the Metropolitan Area of the Valley of Mexico ("Zona Metropolitana del Valle de México") an agglomeration that incorporates 18 additional municipalities.
Metropolitan Area of the Valley of Mexico