Fourth federal electoral district of Chiapas

The fourth federal electoral district of Chiapas (Distrito electoral federal 04 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.

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 this district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the third region.

District territory
Under the 2022 districting plan, which will be used for the 2024, 2027 and 2030 federal elections, the fourth district of Chiapas comprises 25 municipalities in the north-west of the state: The district's head town (cabecera distrital), where results from individual polling stations are gathered together and collated, is the city of Pichucalco.
 * Amatán, Chapultenango, Chicoasen, Coapilla, Copainalá, Francisco León, Ixhuatán, Ixtacomitán, Ixtapangajoya, Juárez, Mezcalapa, Ocotepec, Ostuacán, Osumacinta, Pantepec, Pichucalco, Rayón, Reforma, Rincón Chamula San Pedro, San Fernando, Solosuchiapa, Sunuapa, Tapalapa, Tapilula and Tecpatán.

Previous districting schemes
Under the 2017 scheme, the district covered 22 municipalities and had its head town at Pichucalco.
 * 2017–2022

In 2005–2017, the fourth district was located in the north-western portion of the state and covered the municipalities of Amatán, Berriozábal, Coapilla, Copainalá, Ixtacomitán, Ixtapangajoya, Juárez, Ocozocoautla de Espinosa, Ostuacán, Pichucalco, Reforma, San Fernando, Solosuchiapa, Sunuapa and Tecpatán. The head town was the city of Ocozocoautla de Espinosa.
 * 2005–2017

Between 1996 and 2005, the fourth district had a different configuration. It was still centred on Ocozocoautla de Espinosa but covered:
 * 1996–2005
 * Berriozábal, Coapilla, Copainalá, Ocozocoautla de Espinosa, San Fernando and Tecpatán, as in 2005–2017, plus:
 * The municipalities of Chicoasén, Ocotepec, Osumacinta, Suchiapa and Villaflores.