Ninth federal electoral district of Chiapas

The ninth federal electoral district of Chiapas (Distrito electoral federal 09 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.

The ninth district was established as part of the 1977 electoral reforms. Under the 1975 districting plan, Chiapas had only six congressional districts; under the 1977 reforms, the number increased to nine. The newly created ninth district elected its first deputy, to the 51st Congress, in the 1979 legislative election.

District territory
Under the 2022 districting plan, which will be used for the 2024, 2027 and 2030 federal elections, Chiapas's ninth district comprises 168 electoral sections in the municipality of Tuxtla Gutiérrez. The district's head town (cabecera distrital), where results from individual polling stations are gathered together and collated, is the state capital, Tuxtla Gutiérrez.

Previous districting schemes
Between 2017 and 2022, the 9th district covered 201 electoral sections in Tuxtla Gutiérrez.
 * 2017–2022

In 2005–2017, the district covered the north-eastern section of the municipality of Tuxtla Gutiérrez, approximating to the eastern half of the city together with a portion of its rural hinterland. The head town was the city of Tuxtla Gutiérrez.
 * 2005–2017

Between 1996 and 2005, the district covered the whole of the municipality of Tuxtla Gutiérrez, with the city serving as the head town.
 * 1996–2005