27th federal electoral district of the Federal District

The 27th district in 2005–2017

The twenty-seventh federal electoral district of the Federal District (Spanish : Distrito electoral federal 27 del Distrito Federal) is a defunct federal electoral district of Mexico. Occupying a portion of what is today Mexico City, it was in existence from 1973 to 2017.

During that time, it returned one deputy to the Chamber of Deputies for each three-year legislative session by means of the first-past-the-post system, electing its first in the 1973 mid-term election and its last in the 2015 mid-terms. From 1979 onwards, 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 25th, 26th and 27th districts were abolished by the National Electoral Institute (INE) in its 2017 redistricting process because the capital's population no longer warranted that number of seats in Congress. ^[3]

District territory

Evolution of electoral district numbers

	1974	1978	1996	2005	2017	2023
Mexico City (Federal District)	27	40	30	27	24	22
Chamber of Deputies	196	300
Sources: [4] [5] [6] [7]

2005–2017

In its final form, when the capital accounted for 27 districts, the 27th was located in the south-east of the city. It covered the whole of the borough of Tláhuac. ^{[8] [9]}

1996–2005

Under the 1996 scheme, the capital comprised 30 districts. The 27th covered Tláhuac and the neighbouring borough of Milpa Alta to the south. ^{[10] [9]}

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, the Federal District's seat allocation rose from 27 to 40. ^[5] The 27th district covered portions of the boroughs of Coyoacán, Iztapalapa and Tlalpan. ^[11]

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

Federal District's 27th district

Election	Deputy	Party	Term	Legislature
1973	Ernesto Aguilar Cordero [12]		1973–1976	49th Congress
1976	Hugo Roberto Castro Aranda [13]		1976–1979	50th Congress
1979	Humberto Rodolfo Olguín [14]		1979–1982	51st Congress
1982	Xóchitl Llarena del Rosario  [ es ] [15]		1982–1985	52nd Congress
1985	Gilberto Nieves Jenkin [16]		1985–1988	53rd Congress
1988	Juan José Hernández Trejo [17]		1988–1991	54th Congress
1991	Silvia Pinal Hidalgo [18]		1991–1994	55th Congress
1994	Rosario Guerra Díaz  [ es ] [19]		1994–1997	56th Congress
1997	Alejandro Ordorica Saavedra [20] [a] Sergio Ávila Rojas [21]		1997–1999 1999–2000	57th Congress
2000	José Delfino Garcés Martínez [22]		2000–2003	58th Congress
2003	José Luis Cabrera Padilla [23]		2003–2006	59th Congress
2006	Guadalupe Flores Salazar [24]		2006–2009	60th Congress
2009	Rigoberto Salgado Vázquez [25]		2009–2012	61st Congress
2012	Guadalupe Flores Salazar [26]		2012–2015	62nd Congress
2015	Norma Xóchitl Hernández Colín [27]		2015–2018	63rd Congress

Notes

1. Ordorica Saavedra resigned his seat on 28 December 1999.

References

1. "How Mexico Elects Its Leaders – The Rules". Mexico Solidarity Project. 31 January 2024. Retrieved 24 August 2024.
2. "Circunscripciones" (PDF). Ayuda 2021. INE . Retrieved 24 August 2024.
3. "Memoria de la Distritación Electoral Nacional 2014–2017" (PDF). INE. 2019. p. 58. Retrieved 24 August 2024.
4. "Memoria de la Distritación Nacional 2021–2023" (PDF). INE. p. 220. Archived from the original (PDF) on 28 May 2024. Retrieved 9 July 2024.
5. González Casanova, Pablo (1993). Las Elecciones en México: evolución y perspectivas (3 ed.). Siglo XXI. p. 219. ISBN   9789682313219 . Retrieved 24 August 2024.
6. 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 9 July 2025.
7. "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. p. 142. Retrieved 4 June 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 9 July 2025.
9. "Distritación 1996/2005 del Distrito Federal" (PDF). IFE. Archived from the original (PDF) on 18 November 2008. Retrieved 11 November 2008. The link contains maps of the 2005 and 1996 schemes.
10. "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. 74. Retrieved 9 July 2025. The link contains a detailed description of the 1996 district's territory.
11. "División del territorio de la República en 300 distritos electorales uninominales para elecciones federales: Distrito Federal". Diario Oficial de la Federación . 29 May 1978. p. 20. Retrieved 24 August 2024. The link contains an exact description of the district's territory.
12. "Legislatura 49" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
13. "Legislatura 50" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
14. "Legislatura 51" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
15. "Legislatura 52" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
16. "Legislatura 53" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
17. "Legislatura 54" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
18. "Legislatura 55" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
19. "Legislatura 56" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 24 August 2024.
20. "Perfil: Dip. Alejandro Victoriano Ordorica Saavedra, LVII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.
21. "Perfil: Dip. Sergio Ávila Rojas, LVII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.
22. "Perfil: Dip. José Delfino Garcés Martínez, LVIII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.
23. "Perfil: Dip. José Luis Cabrera Padilla, LIX Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.
24. "Perfil: Dip. Guadalupe Socorro Flores Salazar, LX Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.
25. "Perfil: Dip. Rigoberto Salgado Vázquez, LXI Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.
26. "Perfil: Dip. Guadalupe Socorro Flores Salazar, LXII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.
27. "Perfil: Dip. Norma Xóchitl Hernández Colín, LXIII Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 24 August 2024.

19°16′N99°00′W / 19.27°N 99.00°W / 19.27; -99.00