Under the previous districting plans enacted by the INE and its predecessors, the 7th district was situated as follows:
2017–2022 :The bulk of the municipality of Cuautitlán Izcalli, except for a portion in the south-east that was assigned to the
14th district. The head town was at Cuautitlán Izcalli.
2005–2017 :Roughly the eastern half of the municipality of Cuautitlán Izcalli; the rest of the municipality was in the
4th district. The head town was at Cuautitlán Izcalli.
1978–1996 :A portion of the municipality of
Naucalpan de Juárez, with Naucalpan as the head town. ==Deputies returned to Congress ==