3rd 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 third district is in the northern part of the Monterrey metropolitan area and covers 158 electoral precincts (secciones electorales) in the municipality of General Escobedo.^[7][a]

The district's head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the city of General Escobedo. The district reported a population of 470,320 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 the municipality of General Escobedo (124 precincts).^[10][11]

2005–2017

Under the 2005 districting plan, the district covered the whole of General Escobedo (64 precincts) and 74 precincts in the municipality of San Nicolás de los Garza. The head town was at General Escobedo.^[12][13]

1996–2005

From 1996 to 2005, the district's head town was at San Nicolás de los Garza. It covered the northern portion of San Nicolás (87 precincts) and the whole of General Escobedo (64 precincts).^[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 3rd district's head town was the state capital, Monterrey, and it covered a portion of that city.^[15]