12th federal electoral district of Chiapas

The 12th federal electoral district of Chiapas (Spanish: Distrito electoral federal 12 de Chiapas) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 13 such districts in the state of Chiapas.^[1]

Chiapas's 12th
Electoral district of the Chamber of Deputies of Mexico
12th district
Incumbent
Member	Rosa Irene Urbina Castañeda [es]
Party	▌Morena
Congress	66th (2024–2027)
District
State	Chiapas
Head town	Tapachula
Coordinates	14°54′N 92°16′W
Covers	Cacahoatán, Frontera Hidalgo, Metapa, Suchiate, Tapachula, Tuxtla Chico, Unión Juárez
PR region	Third
Precincts	210
Population	440,643 (2020 Census)

Chiapas under the 2017–2022 districting scheme

12th district in 2005–2017

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 third region.^[2][3]

The 12th district was created in 1996. Between 1979 and 1996, the state had only nine congressional districts; the 1996 redistricting process increased the number to 12.^[4] The three new districts elected their first deputies in the 1997 mid-terms.

The current member for the district, elected in the 2024 general election, is Rosa Irene Urbina Castañeda [es] of the National Regeneration Movement (Morena).^[5][6]

District territory

Under 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] the 12th district comprises 210 electoral precincts (secciones electorales) across seven municipalities in the extreme south of the state:^[8][9]

• Cacahoatán, Frontera Hidalgo, Metapa, Suchiate, Tapachula, Tuxtla Chico and Unión Juárez.

The head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the city of Tapachula. The district reported a population of 440,643 in the 2020 Census.^[1]

Previous districting schemes

Evolution of electoral district numbers

	1974	1978	1996	2005	2017	2023
Chiapas	6	9	12	12	13	13
Chamber of Deputies	196	300
Sources: [1][10][4][11]

2017–2022

From 2017 to 2022 the district had same composition as in the 2022 plan.^[12][11]

2005–2017

The district was located in the same basic region but comprised the municipalities of Frontera Hidalgo, Metapa, Suchiate, Tuxtla Chico and three-quarters of the municipality of Tapachula (the northern quarter was in the 11th district). The district's head town was the city of Tapachula.^[13]

1996–2005

Between 1996 and 2005, the district had a different configuration: it covered the municipality of Tapachula in its entirety, together with Cacahoatán and Unión Juárez, in addition to the others that it covered between 2005 and 2017.^[14]

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

Chiapas's 12th district

Election	Deputy	Party	Term	Legislature
1997	Ranulfo Tonche Pacheco[15]		1997–2000	57th Congress
2000	Adolfo Zamora Cruz[16]		2000–2003	58th Congress
2003	Carlos Pano Becerra[17]		2003–2006	59th Congress
2006	Antonio de Jesús Díaz Athié[18]		2006–2009	60th Congress
2009	Sami David David[19]		2009–2012	61st Congress
2012	Antonio de Jesús Díaz Athié[20]		2012–2015	62nd Congress
2015	Samuel Alexis Chacón Morales[21]		2015–2018	63rd Congress
2018[22]	José Luis Elorza Flores[23]		2018–2021	64th Congress
2021[24]	José Luis Elorza Flores[25]		2021–2024	65th Congress
2024[5]	Rosa Irene Urbina Castañeda [es][6]		2024–2027	66th Congress

Presidential elections

Chiapas's 12th district

Election	District won by	Party or coalition	%
2018[26]	Andrés Manuel López Obrador	Juntos Haremos Historia	71.7881
2024[27]	Claudia Sheinbaum Pardo	Sigamos Haciendo Historia	70.0013