The 6th federal electoral district of Sonora () is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of seven such districts in the state of Sonora.
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 first region.
The 6th district was created in 1978 and was first contested in the 1979 legislative election.
The current member for the district, elected in the 2024 general election, is Anabel Acosta Islas. Originally elected as a member of National Regeneration Movement (Morena), she switched allegiance to the Ecologist Green Party of Mexico (PVEM) at the start of the legislative session.
District territory Under the 2023 districting plan adopted by the National Electoral Institute (INE), which is to be used for the 2024, 2027 and 2030 federal elections, Sonora's 6th district comprises the 232 electoral precincts () that make up the municipality of Cajeme.
The head town (), where results from individual polling stations are gathered together and tallied, is Ciudad Obregón, the municipal seat and the state's second largest city. The district reported a population of 436,310 in the 2020 census.
Previous districting schemes + Evolution of electoral district numbers 1974 1978 1996 2005 2017 2023 Sonora 4 7 7 7 7 7 Chamber of Deputies 196 300Sources:
1996–2022 In the 2017, 2005 and 1996 The link provides a complete list of the municipalities covered. districting plans, the district had the same configuration as in the 2023 scheme.
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, Sonora's seat allocation rose from four to seven. The newly created 6th district had its head town at Hermosillo. It covered a part of that city, the rural part of its surrounding municipality, and the municipalities of Álamos, La Colorada, Mazatán, Onavas, Quiriego, Rayón, Rosario San Javier, San Miguel de Horcasitas, Soyopa, Suaqui Grande, Ures and Yécora.
Deputies returned to Congress
+ Sonora's 6th district Election Deputy Party Term Legislature1979Fernando Mendoza Contreras1979–198251st Congress1982Rubén Castro Ojeda1982–198552nd Congress1985Jorge Acevedo Samaniego1985–198853rd Congress1988Sergio Jesús Torres Serrano1988–199154th Congress1991Víctor Raúl Burton Trejo1991–199455th Congress1994Alfonso Molina Ruibal1994–199756th Congress1997Saúl Solano Castro1997–200057th Congress2000María del Rosario Oroz Ibarra2000–200358th Congress2003Javier Castelo Parada2003–200659th Congress2006Armando Félix Holguín2006–200960th Congress2009Rogelio Díaz Brown2009–201261st Congress2012Faustino Félix Chávez2012–201562nd Congress2015Abel Murrieta Gutiérrez2015–201863rd Congress20182018–202164th Congress20212021–202465th Congress2024Anabel Acosta Islas 2024–202766th Congress
Presidential elections + Sonora's 6th district Election District won by Party or coalition % 2018Andrés Manuel López Obrador Juntos Haremos Historia 70.31632024Claudia Sheinbaum Pardo Sigamos Haciendo Historia 68.8805
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