4th federal electoral district of Tamaulipas

Tamaulipas's 4th
Electoral district of the Chamber of Deputies of Mexico
4th district since 2023
Incumbent
Member	Mario Alberto López  [ es ]
Party	▌ Ecologist Green Party
Congress	66th (2024–2027)
District
State	Tamaulipas
Head town	Matamoros
Coordinates	25°52′N97°30′W / 25.867°N 97.500°W / 25.867; -97.500
Covers	Municipality of Matamoros (part)
PR region	Second
Precincts	197
Population	439,075 (2020 Census)

Tamaulipas's districts in 2017–2022

The 4th federal electoral district of Tamaulipas (Spanish : Distrito electoral federal 04 de 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. ^[1]

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. ^{[2] [3]}

The current member for the district, elected in the 2024 general election, is Mario Alberto López Hernández  [ es ]. ^{[4] [5]} 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. ^[6]

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, ^[7] but the 4th district was largely unaffected. It is located in the north of the state and comprises 197 electoral precincts (secciones electorales) in the urban core of the municipality of Matamoros. ^{[8] [9]}

The head town (cabecera distrital), 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. ^[1]

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	300
Sources: [1] [10] [11] [12]

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. ^{[13] [12]}

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. ^{[14] [15]}

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. ^{[16] [15]}

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. ^[10] The 4th district's head town was at the state capital, Ciudad Victoria, and it covered six municipalities in that part of the state: ^[17]

• Bustamante, Jaumave, Miquihuana, Palmillas, Tula and Victoria.

Deputies returned to Congress

National parties
Current
	PAN
	PRI
	PT
	PVEM
	MC
	Morena
Defunct or local only
	PLM
	PNR
	PRM
	PNM
	PP
	PPS
	PARM
	PFCRN
	Convergencia
	PANAL
	PSD
	PES
	PES
	PRD

Tamaulipas's 4th district

Election	Deputy	Party	Term	Legislature
1916  [ es ]	Fortunato de Leija [18] [19]		1916–1917	Constituent Congress of Querétaro
1917	Emilio Portes Gil [20]		1917–1918	27th Congress  [ es ]
...
1976	Aurora Cruz de Mora  [ es ] [21]		1976–1979	50th Congress
1979	Jaime Báez Rodríguez [22]		1979–1982	51st Congress
1982	Abdón Martínez Hinojosa [23]		1982–1985	52nd Congress
1985	Diego Navarro Rodríguez [24]		1985–1988	53rd Congress
1988	Jaime Rodríguez Inurrigarro [25]		1988–1991	54th Congress
1991	Laura Alicia Garza Galindo [26]		1991–1994	55th Congress
1994	José Antonio Martínez Torres [27]		1994–1997	56th Congress
1997	Miguel Antonio Rubiano Reyna [28]		1997–2000	57th Congress
2000	Simón Iván Villar Martínez [29]		2000–2003	58th Congress
2003	Baltazar Manuel Hinojosa Ochoa [30] [a] Érick Agustín Silva Santos [31]		2003–2004 2004–2006	59th Congress
2006	Carlos Alberto García González [32]		2006–2009	60th Congress
2009	Baltazar Manuel Hinojosa Ochoa [33]		2009–2012	61st Congress
2012	Carlos Alberto García González [34]		2012–2015	62nd Congress
2015	Jesús de la Garza Díaz del Guante  [ es ] [35]		2015–2018	63rd Congress
2018 [36]	Adriana Lozano Rodríguez  [ es ] [37]		2018–2021	64th Congress
2021 [38]	Adriana Lozano Rodríguez  [ es ] [39]		2021–2024	65th Congress
2024 [4]	Mario Alberto López Hernández  [ es ] [5] [b]		2024–2027	66th Congress

Presidential elections

Tamaulipas's 4th district

Election	District won by	Party or coalition	%
2018 [40]	Andrés Manuel López Obrador	Juntos Haremos Historia	54.5945
2024 [41]	Claudia Sheinbaum Pardo	Sigamos Haciendo Historia	67.9386

Notes

1. Hinojosa Ochoa resigned his seat on 13 August 2004 and was replaced for the remainder of his term by his alternate, Silva Santos.
2. López Hernández was originally elected for Morena but switched to the PVEM at the start of the congressional session. ^[6]

References

1. "Memoria de la Distritación Nacional 2021–2023" (PDF). INE. p. 266. Archived from the original (PDF) on 28 May 2024. Retrieved 20 July 2025.
2. "How Mexico Elects Its Leaders – The Rules". Mexico Solidarity Project. 31 January 2024. Retrieved 20 July 2025.
3. "Circunscripciones" (PDF). Ayuda 2021. INE . Retrieved 20 July 2025.
4. "Diputaciones: Tamaulipas. Distrito 4. H. Matamoros". Cómputos Distritales 2024. INE . Retrieved 20 July 2025.
5. "Perfil: Dip. Mario Alberto López Hernández, LXVI Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
6. "Arranca apenas la Legislatura y cinco diputados federales piden licencia". MVS Noticias. 2 September 2024. Retrieved 20 July 2025.
7. De la Rosa, Yared (20 February 2023). "Nueva distritación electoral le quita diputados a la CDMX y le agrega a Nuevo León". Forbes México. Retrieved 20 July 2025.
8. "Acuerdo del Consejo General del Instituto Nacional Electoral por el que se aprueba el proyecto de la demarcación territorial de los trescientos distritos electorales federales uninominales". Diario Oficial de la Federación . 20 February 2023. p. 560. Retrieved 20 July 2025.
9. Escamilla, Josué (2 August 2023). "Tamaulipas traspasa distrito electoral federal a Nuevo León". Hoy Tamaulipas. Retrieved 20 July 2025.
10. González Casanova, Pablo (1993). Las Elecciones en México: evolución y perspectivas (3 ed.). Siglo XXI. p. 219. ISBN   9789682313219 . Retrieved 20 July 2025.
11. Baños Martínez, Marco Antonio; Palacios Mora, Celia (2014). "Evolución territorial de los distritos electorales federales uninominales, 1977–2010" [Territorial evolution of the federal uninominal electoral districts, 1977–2010]. Investigaciones Geográficas (84). Mexico City: Instituto de Geografía, UNAM: 92. doi: 10.14350/rig.34063 . Retrieved 20 July 2025.
12. "Acuerdo del Consejo General del Instituto Nacional Electoral por el que se aprueba la demarcación territorial de los 300 distritos electorales federales uninominales" (PDF). Repositorio Documental. INE. 15 March 2017. Retrieved 20 July 2025.
13. "Descriptivo de la distritación federal: Tamaulipas, marzo de 2017" (PDF). INE. March 2017. Archived from the original (PDF) on 15 January 2019. Retrieved 20 July 2025.
14. "Acuerdo del Consejo General del Instituto Federal Electoral por el que se establece la demarcación territorial de los trescientos distritos electorales federales uninominales". Diario Oficial de la Federación . 2 March 2005. Retrieved 20 July 2025.
15. "Condensado estatal de Tamaulipas 1996–2005" (PDF). IFE. Archived from the original (PDF) on 19 May 2006. Retrieved 20 July 2025. The link contains maps of the 2005 and 1996 schemes.
16. "Acuerdo del Consejo General del Instituto Federal Electoral por el que se establece la demarcación territorial de los trescientos distritos electorales federales uninominales". Diario Oficial de la Federacion . 12 August 1996. p. 91. Retrieved 20 July 2025.
17. "División del territorio de la República en 300 distritos electorales uninominales para elecciones federales: Tamaulipas". Diario Oficial de la Federación . 29 May 1978. p. 38. Retrieved 20 July 2025.
18. "Lista de diputados al Congreso Constituyente 1916–1917" (PDF). Constitución de 1917. Secretaría de Cultura . Retrieved 20 July 2025.
19. "Fortunato de Leija". Constitución de 1917. Secretaría de Cultura . Retrieved 20 July 2025.
20. "Legislatura 27" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
21. "Legislatura 50" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
22. "Legislatura 51" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
23. "Legislatura 52" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
24. "Legislatura 53" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
25. "Legislatura 54" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
26. "Legislatura 55" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
27. "Legislatura 56" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
28. "Legislatura 57" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 20 July 2025.
29. "Perfil: Dip. Simón Iván Villar Martínez, LVIII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
30. "Perfil: Dip. Baltazar Manuel Hinojosa Ochoa, LIX Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
31. "Perfil: Dip. Erick Agustín Silva Santos, LIX Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
32. "Perfil: Dip. Carlos Alberto García González, LX Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
33. "Perfil: Dip. Baltazar Manuel Hinojosa Ochoa, LXI Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
34. "Perfil: Dip. Carlos Alberto García González, LXII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
35. "Perfil: Dip. Jesús de la Garza Díaz del Guante, LXIII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
36. "Diputaciones: Tamaulipas. Distrito 4. H. Matamoros". Cómputos Distritales 2018. INE . Retrieved 20 July 2025.
37. "Perfil: Dip. Adriana Lozano Rodríguez, LXIV Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
38. "Diputaciones: Tamaulipas. Distrito 4. H. Matamoros". Cómputos Distritales 2021. INE . Retrieved 20 July 2025.
39. "Perfil: Dip. Adriana Lozano Rodríguez, LXV Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 20 July 2025.
40. "Presidencia: Tamaulipas. Distrito 4. H. Matamoros". Cómputos Distritales 2018. INE . Retrieved 20 July 2025.
41. "Presidencia: Tamaulipas. Distrito 4. H. Matamoros". Cómputos Distritales 2024. INE . Retrieved 20 July 2025.