5th 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 fifth district is in the centre of the Monterrey metropolitan area and covers 151 electoral precincts (secciones electorales) in the north-west 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 382,898 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 111 precincts in the north-west of the municipality of Monterrey, with the remainder assigned to the 6th and 10th districts.^[10][11]

2005–2017

Under the 2005 districting plan, the district covered the north-west of Monterrey, with the remainder of the municipality assigned to the 6th, 7th and 10th districts.^[12][13]

1996–2005

From 1996 to 2005, the district covered the north-west of Monterrey, with the remainder of the municipality assigned to the 6th, 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 5th district had its head town at Linares and it comprised the municipalities of Aramberri, Doctor Arroyo, Galeana, General Terán, General Zaragoza, Hualahuises, Iturbide, Linares and Mier y Noriega.^[15]