Fourth Federal Electoral District of Chiapas

The Fourth Federal Electoral District of Chiapas "(IV Distrito Electoral Federal de Chiapas)" is one of the 300 Electoral Districts into which Mexico is divided for the purpose of elections to the federal Chamber of Deputies and one of 12 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.
District territory.
The Fourth District of Chiapas is located in the north-western portion of the state and
covers the municipalities of Amatán, Berriozábal, Coapilla, Copainalá, Ixtacomitán, Ixtapangajoya, Juárez, Ocozocoautla de Espinosa, Ostuacán, Pichucalco, Reforma, San Fernando, Solosuchiapa, Sunuapa and Tecpatán.
The district's head town "(cabecera distrital)", where results from individual polling stations are gathered together and collated, is the city of Ocozocoautla de Espinosa.
Previous districting schemes.
1996–2005 district.
Between 1996 and 2005, the Fourth District had a different configuration. It was still centred on Ocozocoautla de Espinosa but covered: