The 4th federal electoral district of Tamaulipas () is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of eight such districts in the state of Tamaulipas.
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 . Originally elected for the National Regeneration Movement (Morena), he switched to the Ecologist Green Party of Mexico (PVEM) at the start of the congressional session.
District territory Tamaulipas lost a district in the 2023 districting plan adopted by the National Electoral Institute (INE), which is to be used for the 2024, 2027 and 2030 federal elections, but the 4th district was largely unaffected. It is located in the north of the state and comprises 197 electoral precincts () in the urban core of the municipality of Matamoros.
The head town (), where results from individual polling stations are gathered together and tallied, is the city of Matamoros. The district reported a population of 439,075 in the 2020 census.
Previous districting schemes + Evolution of electoral district numbers 1974 1978 1996 2005 2017 2023 Tamaulipas 6 9 8 8 9 8 Chamber of Deputies 196 300Sources:
2017–2022 Between 2017 and 2022, Tamaulipas accounted for nine single-member congressional seats. The 4th district's head town was at Matamoros and it covered 157 precincts in the municipality's urban core.
2005–2017 Under the 2005 plan, Tamaulipas had eight districts. This district's head town was at Matamoros and it covered 173 precincts in the municipality's urban core. The link contains maps of the 2005 and 1996 schemes.
1996–2005 In the 1996 scheme, under which Tamaulipas lost a single-member seat, the district had its head town at Matamoros and it covered the whole of the city and its municipality.
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, Tamaulipas's seat allocation rose from six to nine. The 4th district's head town was at the state capital, Ciudad Victoria, and it covered six municipalities in that part of the state: Bustamante, Jaumave, Miquihuana, Palmillas, Tula and Victoria.
Deputies returned to Congress
+ Tamaulipas's 4th district Election Deputy Party Term LegislatureFortunato de Leija1916–1917Constituent Congressof Querétaro1917Emilio Portes Gil1917–1918 ...19761976–197950th Congress1979Jaime Báez Rodríguez1979–198251st Congress1982Abdón Martínez Hinojosa1982–198552nd Congress1985Diego Navarro Rodríguez1985–198853rd Congress1988Jaime Rodríguez Inurrigarro1988–199154th Congress1991Laura Alicia Garza Galindo1991–199455th Congress1994José Antonio Martínez Torres1994–199756th Congress1997Miguel Antonio Rubiano Reyna1997–200057th Congress2000Simón Iván Villar Martínez2000–200358th Congress2003Baltazar Manuel Hinojosa OchoaÉrick Agustín Silva Santos2003–20042004–200659th Congress2006Carlos Alberto García González2006–200960th Congress2009Baltazar Manuel Hinojosa Ochoa2009–201261st Congress2012Carlos Alberto García González2012–201562nd Congress20152015–201863rd Congress20182018–202164th Congress20212021–202465th Congress2024 2024–202766th Congress
Presidential elections + Tamaulipas's 4th district Election District won by Party or coalition % 2018Andrés Manuel López Obrador Juntos Haremos Historia 54.59452024Claudia Sheinbaum Pardo Sigamos Haciendo Historia 67.9386
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