The 4th federal electoral district of Nuevo León () is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 14 such districts in the state of Nuevo León.
It elects one deputy to the lower house of Congress for each three-year legislative session by means of the first-past-the-post system. Votes cast in the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the second region.
The current member for the district, elected in the 2024 general election, is Lilia Olivares Castañeda of the National Action Party (PAN).
District territory 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, Nuevo León's congressional seat allocation rose from 12 to 14. The fourth district is in the centre of the Monterrey metropolitan area and covers two of the state's municipalities: The whole of San Nicolás de los Garza – 241 electoral precincts () – and 8 precincts in General Escobedo.
The district's head town (), where results from individual polling stations are gathered together and tallied, is the city of San Nicolás de los Garza.The district reported a population of 423,298 in the 2020 census.
Previous districting schemes + 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:
2017–2022 Between 2017 and 2022, the district comprised the whole of San Nicolás de los Garza (238 precincts).
2005–2017 Under the 2005 districting plan, the district covered 164 precincts in the south-east of San Nicolás de los Garza. (The remainder of the municipality was assigned to the 3rd district.) The link contains comparative maps of the 1996 and 2005 schemes.
1996–2005 From 1996 to 2005, the district covered the southern portion of San Nicolás (151 precincts).
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. The 4th district was located in the Monterrey metropolitan area and covered a portion of the city of Guadalupe. The link contains an exact description of the area covered.
Deputies returned to Congress
+ Nuevo León's 4th district Election Deputy Party Term LegislatureRamón Gámez1916–1917Constituent Congressof Querétaro ...1979Filiberto Villarreal Ayala1979–198251st Congress1982Homero Ayala Torres1982–198552nd Congress1985Isaías Vázquez Mendoza1985–198853rd Congress1988Agustín Serna Servín1988–199154th Congress1991Juan Morales Salinas 1991–199455th Congress1994Gerardo Macario Rodríguez Rivera1994–199756th Congress1997Pablo Gutiérrez Jiménez1997–200057th Congress2000Manuel Braulio Martínez Ramírez2000–200358th Congress2003Norma Patricia Saucedo Moreno2003–200659th Congress2006Gustavo Ramírez Villarreal2006–200960th Congress2009Camilo Ramírez Puente2009–201261st Congress2012Víctor Oswaldo Fuentes Solís2012–2015201562nd Congress20152015–201863rd Congress20182018–202164th Congress20212021–202465th Congress2024Amparo Lilia Olivares Castañeda2024–202766th Congress
Presidential elections + Nuevo León's 4th district Election District won by Party or coalition % 2018Ricardo Anaya Cortés Por México al Frente40.91742024Bertha Xóchitl Gálvez Ruiz Fuerza y Corazón por México44.6301
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