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1st federal electoral district of Coahuila

The 1st federal electoral district of Coahuila () is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of eight such districts in the state of Coahuila.

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 second region.

The current member for the district, re-elected in the 2024 general election, is Brígido Ramiro Moreno Hernández of the Labour Party (PT).

District territory

In its 2023 districting plan, which is to be used for the 2024, 2027 and 2030 federal elections, the National Electoral Institute (INE) assigned Coahuila an additional district. The reconfigured 1st district comprises 206 electoral precincts () across six municipalities in the state's extreme north:

The head town (), where results from individual polling stations are gathered together and tallied, is the city of Piedras Negras. The district reported a population of 403,123 in the 2020 Census.

Previous districting schemes

2017–2022

Between 2017 and 2022, the district covered seven of the state's northern municipalities: the six included in the 2023 plan, plus San Juan de Sabinas. The head town was at Piedras Negras.

2005–2017

Under the 2005 districting scheme, the district covered 10 northern municipalities: Acuña, Allende, Guerrero, Hidalgo, Jiménez, Morelos, Nava, Piedras Negras, Villa Unión and Zaragoza. The head town was the city of Piedras Negras.

1996–2005

Between 1996 and 2005, the 1st district's territory was in the north and north-east region of the state and covered 11 municipalities: Acuña, Allende, Guerrero, Hidalgo, Jiménez, Morelos, Múzquiz, Nava, Piedras Negras, Villa Unión and Zaragoza. The head town was at Piedras Negras.

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, Coahuila's seat allocation rose from 4 to 7. The 1st district had its head town at Saltillo and it covered that city.

Deputies returned to Congress

Presidential elections

Notes

References