2017–2022 :As under the 2023 plan: the five municipalities of Armería, Ixtlahuacán, Manzanillo, Minatitlán and Tecomán. The district's head town was at Manzanillo.
2005–2017 :Between 2005 and 2017, the district covered only four municipalities: Ixtlahuacán was assigned to the
1st district.
1996–2005 :From 1996 to 2005, the 2nd district covered the same five municipalities as in the 2017 and 2023 schemes. ==Deputies returned to Congress==