20th federal electoral district of Jalisco

Jalisco's 20th
Electoral district of the Chamber of Deputies of Mexico
20th district
Incumbent
Member	Katia Castillo Lozano  [ es ]
Party	▌ Morena
Congress	66th (2024–2027)
District
State	Jalisco
Head town	Tonalá
Coordinates	20°37′N103°14′W / 20.617°N 103.233°W / 20.617; -103.233
Covers	Municipalities of Tonalá (part) and El Salto
PR region	First
Precincts	52
Population	400,804 (2020 Census)

Jalisco's districts in 2017–2022

The 20th federal electoral district of Jalisco (Spanish : Distrito electoral federal 20 de Jalisco) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 20 such districts in the state of Jalisco. ^[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 first region. ^{[2] [3]}

Suspended in 1930, ^[a] the 20th district was re-established as part of the 1977 electoral reforms. It was suspended again in 1996 but restored by the National Electoral Institute (INE) in its 2017 redistricting.

The current member for the district, elected in the 2024 general election, is Katia Alejandra Castillo Lozano  [ es ] of the National Regeneration Movement (Morena). ^{[7] [8]}

District territory

Under the National Electoral Institute's 2023 districting plan, which is to be used for the 2024, 2027 and 2030 federal elections, ^[9] Jalisco's 20th district is located in the Guadalajara Metropolitan Area and comprises 52 electoral precincts (secciones electorales) across two of the state's 125 municipalities: ^[10]

• A portion of Tonalá (26 precincts) and the whole of El Salto (26 precincts). ^[b]

The head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the city of Tonalá. The district reported a population of 400,804 in the 2020 Census. ^[1]

Previous districting schemes

Evolution of electoral district numbers

	1974	1978	1996	2005	2017	2023
Jalisco	13	20	19	19	20	20
Chamber of Deputies	196	300
Sources: [1] [11] [12] [13]

2017–2022

The 20th district was restored in the 2017 redistricting process. Its head town was at Tonalá and it covered 90 precincts across five municipalities in the centre of the state: ^{[14] [13]}

• Acatic, Juanacatlán, El Salto, Tonalá (part) and Zapotlanejo.

1996–2017

Between 1996 and 2017, Jalisco had only 19 congressional seats.

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, Jalisco's seat allocation rose from 13 to 20. ^[11] The 20th district's head town was at Zapopan and it covered a part of the city, a part of its surrounding municipality, and the whole of the neighbouring municipality of Tala. ^[15]

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

Jalisco's 20th district

Election	Deputy	Party	Term	Legislature
1916  [ es ]	Rafael Ochoa [16] [17]		1916–1917	Constituent Congress of Querétaro
1917	Ramón Blancarte [18]		1917–1918	27th Congress  [ es ]
1918	Ramón Blancarte [19]		1918–1920	28th Congress
1920	Natalio Espinosa [20]		1920–1922	29th Congress
1922  [ es ]	Francisco González Guerrero  [ es ] [21]		1922–1924	30th Congress  [ es ]
1924	Justo González [22]		1924–1926	31st Congress
1926	Severiano Lozano [23]		1926–1928	32nd Congress
1928	Francisco Labastida Izquierdo [24]		1928–1930	33rd Congress
The 20th district was suspended between 1930 and 1979
1979	Antonio Ruiz Rosas [25]		1979–1982	51st Congress
1982	Rafael García Sancho Gómez [26]		1982–1985	52nd Congress
1985	Constancio Hernández Allende [27]		1985–1988	53rd Congress
1988	Raúl Octavio Espinoza Martínez [28]		1988–1991	54th Congress
1991	Jesús Enrique Ramos Flores [29]		1991–1994	55th Congress
1994	Francisco Ledezma Durán [30]		1994–1997	56th Congress
The 20th district was suspended between 1997 and 2018
2018 [31]	Ana Priscila González García [32]		2018–2021	64th Congress
2021 [33]	María del Refugio Camarena Jáuregui [34]		2021–2024	65th Congress
2024 [7]	Katia Alejandra Castillo Lozano  [ es ] [8]		2024–2027	66th Congress

Presidential elections

Jalisco's 20th district

Election	District won by	Party or coalition	%
2018 [35]	Andrés Manuel López Obrador	Juntos Haremos Historia	43.9059
2024 [36]	Claudia Sheinbaum Pardo	Sigamos Haciendo Historia	54.6822

Notes

1. An amendment to Article 52 of the Constitution in 1928 changed the original provision of "one deputy per 60,000 inhabitants" to "one deputy per 100,000"; ^{[4] [5]} as a result, the size of the Chamber of Deputies fell from 281 in the 1928 election to 171 in 1934. ^[6]
2. The bulk of Tonalá (69 precincts) is assigned to the 7th district.

References

1. "Memoria de la Distritación Nacional 2021–2023" (PDF). INE. p. 231. Archived from the original (PDF) on 28 May 2024. Retrieved 19 July 2025.
2. "How Mexico Elects Its Leaders – The Rules". Mexico Solidarity Project. 31 January 2024. Retrieved 19 July 2025.
3. "Circunscripciones" (PDF). Ayuda 2021. INE . Retrieved 19 July 2025.
4. "Diario Oficial de la Federación, 20 de agosto de 1928" (PDF). Diario Oficial de la Federación . 20 August 1928. Retrieved 19 July 2025.
5. "Artículo 52, reformas" (PDF). Suprema Corte de Justicia de la Nación . Retrieved 19 July 2025.
6. Godoy, Luis. "Reelección en la Cámara de Diputados, 1917–1934" (PDF). Instituto Tecnológico Autónomo de México . Retrieved 19 July 2025.
7. "Diputaciones: Jalisco. Distrito 20. Tonalá". Cómputos Distritales 2024. INE . Retrieved 19 July 2025.
8. "Perfil: Dip. Katia Alejandra Castillo Lozano, LXVI Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 19 July 2025.
9. 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 19 July 2025.
10. "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. 452. Retrieved 19 July 2025.
11. González Casanova, Pablo (1993). Las Elecciones en México: evolución y perspectivas (3 ed.). Siglo XXI. p. 219. ISBN   9789682313219 . Retrieved 19 July 2025.
12. 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 19 July 2025.
13. "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 19 July 2025.
14. "Descriptivo de la distritación federal: Jalisco, marzo de 2017" (PDF). INE. March 2017. Archived from the original (PDF) on 20 June 2024. Retrieved 19 July 2025.
15. "División del territorio de la República en 300 distritos electorales uninominales para elecciones federales: Jalisco". Diario Oficial de la Federación . 29 May 1978. p. 27. Retrieved 19 July 2025.
16. "Lista de diputados al Congreso Constituyente 1916–1917" (PDF). Constitución de 1917. Secretaría de Cultura . Retrieved 19 July 2025.
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25. "Legislatura 51" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 19 July 2025.
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27. "Legislatura 53" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 19 July 2025.
28. "Legislatura 54" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 19 July 2025.
29. "Legislatura 55" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 19 July 2025.
30. "Legislatura 56" (PDF). Biblioteca Virtual. Cámara de Diputados . Retrieved 19 July 2025.
31. "Diputaciones: Jalisco. Distrito 20. Tonalá". Cómputos Distritales 2018. INE . Retrieved 19 July 2025.
32. "Perfil: Dip. Ana Priscila González García, LXIV Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 19 July 2025.
33. "Diputaciones: Jalisco. Distrito 20. Tonalá". Cómputos Distritales 2021. INE . Retrieved 19 July 2025.
34. "Perfil: Dip. María del Refugio Camarena Jáuregui, LXV Legislatura". Sistema de Información Legislativa (SIL). SEGOB . Retrieved 19 July 2025.
35. "Presidencia: Jalisco. Distrito 20. Tonalá". Cómputos Distritales 2018. INE . Retrieved 19 July 2025.
36. "Presidencia: Jalisco. Distrito 20. Tonalá". Cómputos Distritales 2024. INE . Retrieved 19 July 2025.