9th federal electoral district of Tamaulipas

  9th district in 2017–2022

The 9th federal electoral district of Tamaulipas (Spanish: Distrito electoral federal 09 de Tamaulipas) is a defunct federal electoral district of the Mexican state of Tamaulipas. It was in existence from 1978 to 1996 and again from 2017 to 2022.

During those periods, it returned one deputy to the Chamber of Deputies for each three-year legislative session by means of the first-past-the-post system. Votes cast in the district also counted towards the calculation of proportional representation ("plurinominal") deputies elected from the country's electoral regions.[1][2]

The 9th district was first created as part of the 1977 electoral reforms, which increased the state's seat allocation from six to nine.[3] Because of shifting population dynamics, it was subsequently abolished in 1996, re-established in 2017, and abolished again in 2023.[4][5][6]

District territory

Evolution of electoral district numbers
1974 1978 1996 2005 2017 2023
Tamaulipas 6 9 8 8 9 8
Chamber of Deputies 196 300
Sources: [3][4][5][6]

2017–2022

In its final form, the 9th district was located in the north of the state. Its head town (cabecera distrital), where results from individual polling stations were gathered together and tallied, was the city of Reynosa and it covered 221 electoral precincts (secciones electorales) in the south of the municipality of Reynosa. The remainder of the municipality was assigned to the 2nd district.[7][5]

1996–2017

Between 1996 and 2017, Tamaulipas's seat allocation was reduced to eight.[8][9][10]

1978–1996

Tamaulipas's seat allocation rose from six to nine under the 1977 electoral reforms, which increased the number of single-member seats in the Chamber of Deputies from 196 to 300.[3] The newly created 9th district's head town was at Ciudad Mante and it covered six municipalities in the south of the state:[11]

Deputies returned to Congress

Mexico 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 9th district
Election Deputy Party Term Legislature
1979 Enrique Fernández Pérez[12] 1979–1982 51st Congress
1982 Martha Chávez Padrón[13] 1982–1985 52nd Congress
1985 Aureliano Caballero González[14] 1985–1988 53rd Congress
1988 Raúl García Leal[15] 1988–1991 54th Congress
1991 Arturo Horacio Saavedra Sánchez[16] 1991–1994 55th Congress
1994 Leticia Camero Gómez[17] 1994–1997 56th Congress
The 9th district was suspended between 1996 and 2017
2018[18] Armando Javier Zertuche Zuani[19][a] 2018–2021 64th Congress
2021[20] Claudia Alejandra Hernández Sáenz[21][b] 2021–2024 65th Congress
The 9th district was suspended in 2023

Presidential elections

Tamaulipas's 9th district
Election District won by Party or coalition %
2018[22] Andrés Manuel López Obrador
Juntos Haremos Historia 		60.4495

Notes

  1. ^ Originally elected for Morena, Zertuche Zuani switched to the PT on 3 September 2019.
  2. ^ Originally elected for the PT, Hernández Sáenz switched to Morena on 7 September 2021.

References

  1. ^ "How Mexico Elects Its Leaders – The Rules". Mexico Solidarity Project. 31 January 2024. Retrieved 21 July 2025.
  2. ^ "Circunscripciones" (PDF). Ayuda 2021. INE. Retrieved 21 July 2025.
  3. ^ a b c González Casanova, Pablo (1993). Las Elecciones en México: evolución y perspectivas (3 ed.). Siglo XXI. p. 219. ISBN 9789682313219. Retrieved 21 July 2025.
  4. ^ a b 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 21 July 2025.
  5. ^ a b c "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 21 July 2025.
  6. ^ a b "Memoria de la Distritación Nacional 2021–2023" (PDF). INE. p. 266. Archived from the original (PDF) on 28 May 2024. Retrieved 21 July 2025.
  7. ^ "Descriptivo de la distritación federal: Tamaulipas, marzo de 2017" (PDF). INE. March 2017. Archived from the original (PDF) on 15 January 2019. Retrieved 21 July 2025.
  8. ^ "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 21 July 2025.
  9. ^ "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. 90. Retrieved 21 July 2025.
  10. ^ "Condensado estatal de Tamaulipas 1996–2005" (PDF). IFE. Archived from the original (PDF) on 19 May 2006. Retrieved 21 July 2025. The link contains maps of the 2005 and 1996 schemes.
  11. ^ "División del territorio de la República en 300 distritos electorales uninominales para elecciones federales: Tamaulipas". Diario Oficial de la Federación. 29 May 1978. p. 39. Retrieved 21 July 2025.
  12. ^ "Legislatura 51" (PDF). Biblioteca Virtual. Cámara de Diputados. Retrieved 21 July 2025.
  13. ^ "Legislatura 52" (PDF). Biblioteca Virtual. Cámara de Diputados. Retrieved 21 July 2025.
  14. ^ "Legislatura 53" (PDF). Biblioteca Virtual. Cámara de Diputados. Retrieved 21 July 2025.
  15. ^ "Legislatura 54" (PDF). Biblioteca Virtual. Cámara de Diputados. Retrieved 21 July 2025.
  16. ^ "Legislatura 55" (PDF). Biblioteca Virtual. Cámara de Diputados. Retrieved 21 July 2025.
  17. ^ "Legislatura 56" (PDF). Biblioteca Virtual. Cámara de Diputados. Retrieved 21 July 2025.
  18. ^ "Diputaciones: Tamaulipas. Distrito 9. Reynosa". Cómputos Distritales 2018. INE. Retrieved 21 July 2025.
  19. ^ "Perfil: Dip. Armando Javier Zertuche Zuani, LXIV Legislatura". Sistema de Información Legislativa (SIL). SEGOB. Retrieved 21 July 2025.
  20. ^ "Diputaciones: Tamaulipas. Distrito 9. Reynosa". Cómputos Distritales 2021. INE. Retrieved 21 July 2025.
  21. ^ "Perfil: Dip. Claudia Alejandra Hernández Sáenz, LXV Legislatura". Sistema de Información Legislativa (SIL). SEGOB. Retrieved 21 July 2025.
  22. ^ "Presidencia: Tamaulipas. Distrito 9. Reynosa". Cómputos Distritales 2018. INE. Retrieved 21 July 2025.

26°05′N 98°17′W / 26.083°N 98.283°W / 26.083; -98.283

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