The 7th 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 7th 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 Alma Manuela Higuera Esquer of the National Regeneration Movement (Morena).
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 7th district covers 205 electoral precincts () across the seven municipalities in the state's south-east: Álamos, Benito Juárez, Etchojoa, Huatabampo, Navojoa, Quiriego and Rosario.
The head town (), where results from individual polling stations are gathered together and tallied, is the city of Navojoa. The district reported a population of 358,031 in the 2020 census and, with Indigenous and Afrodescendent inhabitants accounting for over 55% of that total, it is classified by the National Electoral Institute (INE) as an indigenous district – the only indigenous federal electoral district in the state.
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:
2005–2022 In the 2017 and 2005 The link contains maps of the 2005 and 1996 schemes. districting plans, the 7th district had the same configuration as at present.
1996–2005 Under the 1996 plan, it covered only the five southernmost municipalities: Rosario was assigned to the 4th district, and Benito Juárez was at the time part of Etchojoa. The link provides a complete list of the municipalities covered.
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 7th district comprised the municipality of Cajeme.
Deputies returned to Congress
+ Sonora's 7th district Election Deputy Party Term Legislature1979Carlos Amaya Rivera1979–198251st Congress1982Ramiro Valdez Fontes1982–198552nd Congress1985Francisco Villanueva Casteló1985–198853nd Congress1988Ramiro Valdez Fontes1988–199154th Congress1991Miguel Ángel Murillo Aispuro1991–199455th Congress1994Juan Leyva Mendívil1994–199756th Congress1997Luis Meneses Murillo1997–200057th Congress2000Arturo León Lerma2000–200358th Congress2003Guadalupe Mendívil Morales2003–200659th Congress2006Gustavo Mendívil Amparán2006–200960th Congress2009Onésimo Mariscales Delgadillo2009–201261st Congress2012Máximo Othón Zayas2012–201562nd Congress2015Próspero Manuel Ibarra Otero2015–201863rd Congress2018Hildelisa González Morales2018–202164th Congress2021Shirley Guadalupe Vázquez Romero 2021–202465th Congress2024Alma Manuela Higuera Esquer2024–202766th Congress
Presidential elections + Sonora's 7th district Election District won by Party or coalition % 2018Andrés Manuel López Obrador Juntos Haremos Historia 63.28202024Claudia Sheinbaum Pardo Sigamos Haciendo Historia 73.1770
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