9th federal electoral district of Guanajuato

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 9th district is located in the central part of Guanajuato and covers 156 electoral precincts (secciones electorales) across two of the state's 46 municipalities:^[7]

• 78 precincts in the north of Irapuato and the entirety of Silao.

The head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the city of Irapuato. The district reported a population of 399,453 in the 2020 Census.^[1]

2017–2022

Between 2017 and 2022, the 9th district's head town was at Irapuato and it covered 70 precincts in the north of the municipality, together with the whole of Silao.^[11][10]

2005–2017

Under the 2005 plan, Guanajuato had only 14 districts. This district's head town was at Irapuato and it covered 202 precincts in the west of the municipality.^[12][13][a]

1996–2005

In the 1996 scheme, under which Guanajuato was assigned 15 seats, the district had its head town at Irapuato and it comprised the whole of the municipality.^[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. Under that plan, Guanajuato's seat allocation rose from 9 to 13.^[8] The 9th district's head town was at San Miguel de Allende and it covered 10 municipalities in the north-east of the state:^[15]

• Allende, Atarjea, Doctor Mora, San José Iturbide, San Luis de la Paz, Santa Catarina, Santa Cruz de Juventino Rosas, Tierra Blanca, Victoria and Xichú.