2nd federal electoral district of Colima

Under the 2023 districting plan adopted by the National Electoral Institute (INE), which is to be used for the 2024, 2027 and 2030 federal elections,^[6] the 2nd district covers 170 electoral precincts (secciones electorales) across five of the state's municipalities:^[7]

• Armería, Ixtlahuacán, Manzanillo, Minatitlán and Tecomán.

The district's head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is Valle de las Garzas near the city of Manzanillo. The district reported a population of 350,811 in the 2020 Census.^[1]

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.^[10][11]

2005–2017

Between 2005 and 2017, the district covered only four municipalities: Ixtlahuacán was assigned to the 1st district.^[12][13]

1996–2005

From 1996 to 2005, the 2nd district covered the same five municipalities as in the 2017 and 2023 schemes.^[14][13]

1978–1996

The districting scheme in force from 1978 to 1996 was the result of the 1977 electoral reforms, which increased the number of single-member seats in the Chamber of Deputies from 196 to 300. Colima's seat allocation, however, remained unchanged.^[8] The district had its head town at the city of Manzanillo and it comprised the same five municipalities as in the 1996, 2017 and 2023 schemes.^[15]