Greater Mexico City refers to the conurbation around Mexico City, called "Zona Metropolitana" in Spanish.

The Mexican Government usually defines Mexico City's conurbation with three diferent terms:

• Federal District (DF), Distrito Federal, The 16 boroughs of Mexico City.

• Metropolitan Area of Mexico City (ZMCM), Zona Metropolitana de la Ciudad de México. This is the Federal District plus 34 municipalities located in the neighbouring State of México: Acolman , Atenco , Atizapán de Zaragoza , Chalco , Chiautla , Chicoloapan , Chiconcuac , Chimalhuacán , Coacalco de Berriozábal , Cuautitlán , Cuautitlan Izcalli , Ecatepec, Huixquilucan , Ixtapaluca , Jaltenco , Melchor Ocampo , Naucalpan de Juárez, Nextlalplan , Nezahualcóyotl, Nicolás Romero , Papalotla , La Paz, Tecámac , Teoloyucán , Teotihuacán, Tepetlaoxtoc , Tepotzotlán , Texcoco, Tezoyuca , Tlalnepantla de Baz , Tultepec , Tultitlán , Valle de Chalco Solidaridad, and Zumpango .

• Metropolitan Area of the Valley of Mexico (ZMVM) Zona Metropolitana del Valle de México. This is ZMCM plus another 22 municipalities in the State of México: Amecameca, Apaxco , Atlautla , Axapusco , Ayapango , Cocotitlán , Coyotepec , Ecatzingo , Huehuetoca , Hueypoztla , Isidro Fabela , Jilotzingo , Juchitepec , Nopaltepec, Otumba , Ozumba , San Martín de las Pirámides , Temamatla , Temascalapa , Tenango del Aire , Tepetlixpa , Tlalmanalco , Villa del Carbón , and one municipality in the state of Hidalgo: Tizayuca .

According to the year 2000 census figures:

• Population of DF: 8.6 million
• Population of ZMCM: 17.8 million
• Population of ZMVM: 18.4 million