The 4th 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 using 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 Jericó Abramo Masso of the Institutional Revolutionary Party (PRI).
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 4th district covers 187 electoral precincts () in the north-eastern, urban portion of the municipality of Saltillo.
The district's head town (), where results from individual polling stations are gathered together and tallied, is the state capital, the city of Saltillo. The district reported a population of 443,238 in the 2020 census.
Previous districting schemes + Evolution of electoral district numbers 1974 1978 1996 2005 2017 2023 Coahuila 4 7 7 7 7 8 Chamber of Deputies 196 300Sources:
2017–2022 Between 2017 and 2022, the district covered a part of the municipality of Saltillo and the whole of the neighbouring municipality of Arteaga. The head town was at Saltillo.
2005–2017 Between 2005 and 2017, the district covered the eastern portion of the municipality of Saltillo, with the city of Saltillo serving as the head town. The link contains comparative maps of the 1996 and 2005 schemes.
1996–2005 Under the 1996 scheme, the district covered the north-eastern portion of the city of Saltillo – the head town – together with the municipalities of Arteaga, General Cepeda, Parras and Ramos Arizpe.
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. Located in the north of the state, the 4th district had its head town at Piedras Negras and it covered the municipalities of Acuña, Jiménez, Morelos, Nava, Piedras Negras, Sabinas and Zaragoza. The link contains an exact description of the area covered.
Deputies returned to Congress
+ Coahuila's 4th district Election Deputy Party Term LegislatureJorge Von Versen1916–1917Constituent Congressof Querétaro1917Aureliano Esquivel CasasPLC1917–191827th Congress1918Jesús Rodríguez de La Fuente1918–192028th Congress1920Manuel H. Flores1920–192229th CongressEnrique Breceda1922–192430th Congress1924Elpidio Rodríguez1924–192631st Congress1926Elpidio Barrera1926–192832nd Congress1928Alfredo I. Moreno1928–193033rd Congress1930Raymundo Cervera1930–193234th Congress1932Severo Jiménez Cadena1932–193435th Congress19341934–193736th Congress1937Emilio N. Acosta1937–194037th Congress1940Carlos Samaniego G.1940–194338th Congress1943Secundino Ramos y Ramos1943–194639th Congress1946Federico Meza Zúñiga1946–194940th Congress1949Ramón Quintana Espinoza1949–195241st Congress1952Feliciano Morales Ramos1952–195542nd Congress1955Antonio Hernández Méndez1955–195843rd Congress1958Daniel Hernández Medrano1958–196144th Congress1961Esteban Guzmán Vázquez1961–196445th Congress1964Mauro Berrueto Ramón1964–196746th Congress1967Feliciano Morales Ramos1967–197047th Congress1970Salvador Hernández Vela1970–197348th Congress1973J. Jesús López González1973–197649th Congress1976Julián Muñoz Uresti1976–197950th Congress1979Ángel López Padilla1979–198251st Congress1982Lucio Lozano Ramírez1982–198552nd Congress1985Rodolfo Alfredo Jiménez Villarreal1985–198853rd Congress1988Rogelio Montemayor Seguy Carlos Fermín Juaristi Septién1988–19901990–199154th Congress1991Jesús María Ramón Valdés1991–199455th Congress1994Marco Antonio Dávila Montesinos1994–199756th Congress1997Horacio Veloz Muñoz1997–200057th Congress2000Ernesto Saro BoardmanMaría Teresa Romo Castillón2000–20022002–200358th Congress2003Óscar Pimentel GonzálezNorma Dávila Salinas2003–20052005–200659th Congress2006Jericó Abramo Masso2006–200960th Congress2009 Rubén Moreira ValdezDiana Patricia González Soto2009–20102010–201261st Congress2012Fernando de las Fuentes2012–201562nd Congress2015Armando Luna Canales2015–201863rd Congress20182018–202164th Congress2021Jericó Abramo Masso2021–202465th Congress2024Jericó Abramo Masso2024–202766th Congress
Presidential elections + Coahuila's 4th district Election District won by Party or coalition % 2018Andrés Manuel López Obrador Juntos Haremos Historia 37.04002024Claudia Sheinbaum Pardo Sigamos Haciendo Historia 45.8491
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