It elects one deputy to the lower house of Congress for each three-year legislative period 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 head town (cabecera distrital), where results from individual polling stations are gathered together and collated, is the city of Palenque. The district reported a population of 410,229 in the 2020 Census.[1] With Indigenous and Afrodescendent inhabitants accounting for over 71% of that total, it is classified by the National Electoral Institute (INE) as an indigenous district.[7][a]
From 2017 to 2022 the district had the same configuration as under the 2022 plan.[12]
2005–2017
The 2005 district covered the same municipalities as under the 2022 and 2017 plans but also included Chilón. The head town was the city of Palenque.[13]
1996–2005
Between 1996 and 2005, the district had exactly the same composition as under the 2005 plan.[14]
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, Chiapas's seat allocation rose from six to nine.[15] The first district had its head town at Tuxtla Gutiérrez and it covered seven municipalities.[16]
↑ The INE deems any local or federal electoral district where Indigenous or Afrodescendent inhabitants number 40% or more of the population to be an indigenous district.[1]
↑ "Chiapas". División del Territorio de la República en 300 Distritos Electorales Uninominales para Elecciones Federales. Diario Oficial de la Federación. 29 May 1978. p.13. Retrieved 25 July 2024. The link provides a list of the constituent municipalities.
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