6th federal electoral district of Nuevo León

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] Nuevo León's congressional seat allocation rose from 12 to 14. The sixth district is in the centre of the Monterrey metropolitan area and covers 272 electoral precincts (secciones electorales) in the central-western portion of the municipality of Monterrey.^[7][a]

The district's head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the state capital, the city of Monterrey. The district reported a population of 375,283 in the 2020 Census.^[1]

Evolution of electoral district numbers

	1974	1978	1996	2005	2017	2023
Nuevo León	7	11	11	12	12	14
Chamber of Deputies	196	300
Sources: [1][8][9][10]

2017–2022

Between 2017 and 2022, the district comprised 270 precincts in the centre-west of the municipality of Monterrey, with the remainder assigned to the 5th and 10th districts.^[10][11]

2005–2017

Under the 2005 districting plan, the district covered the centre-west of Monterrey, with the remainder of the municipality assigned to the 5th, 7th and 10th districts.^[12][13]

1996–2005

From 1996 to 2005, the district covered the centre-west of Monterrey, with the remainder of the municipality assigned to the 5th, 7th and 10th districts.^[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, Nuevo León's seat allocation rose from 7 to 11.^[8] The 6th district had its head town at Sabinas Hidalgo in the north of the state and it comprised the municipalities of Abasolo, Agualeguas, Los Aldamas, Anáhuac, Apodaca, Bustamante, El Carmen, Cerralvo, Ciénaga de Flores, China, Doctor Coss, Doctor González, General Bravo, General Escobedo, General Treviño, General Zuazua, Los Herreras, Hidalgo, Higueras, Juárez, Lampazos de Naranjo, Marín, Melchor Ocampo, Mina, Parás, Pesquería, Los Ramones, Sabinas Hidalgo, Salinas Victoria, Vallecillo, Villaldama and Colombia.^[15]