The 3rd 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 current member for the district, elected in the 2024 general election, is of the Labour Party (PT), the wife of fellow deputy Sergio Gutiérrez Luna (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 3rd district covers 200 electoral precincts () across the north-western half of the municipality of Hermosillo, including Tiburón Island.
The head town (), where results from individual polling stations are gathered together and tallied, is the state capital, the city of Hermosillo. The district reported a population of 467,597 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:
2017–2022 Between 2017 and 2022, the district covered the north-western half of the municipality of Hermosillo, similar to the 2023 scheme.
2005–2017 Under the 2005 plan, the district covered a north-western portion of the municipality of Hermosillo, with its head town in the state capital. The link contains comparative maps of the 2005 and 1996 configurations.
1996–2005 Under the 1996 districting plan, the head town was at Hermosillo and the district covered the northern half of the municipality. 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 3rd district had its head town at Guaymas and it covered the municipalities of Bácum, Guaymas and Empalme.
Deputies returned to Congress
+ Sonora's 3rd district Election Deputy Party Term LegislatureRamón Ross 1916–1917Constituent Congressof Querétaro ...1976José Luis Vargas González1976–197950th Congress1979Hugo Romero Ojeda1979–198251st Congress1982Hugo Romero Ojeda1982–198552nd Congress1985Manlio Fabio Beltrones1985–198853rd Congress1988Julián Luzanilla Contreras1988–199154th Congress1991Julián Luzanilla Contreras1991–199455th Congress1994Heriberto Lizárraga Zatarain1994–199756th Congress1997Manuel Cornelio Peñuñuri Noriega1997–200057th Congress2000Vicente Pacheco Castañeda2000–200358th Congress2003Homero Ríos Murrieta2003–200659th Congress2006Luis Serrato Castell2006–200960th Congress2009Ernesto de Lucas Hopkins2009–201261st Congress2012Alejandra López Noriega2012–201562nd Congress2015Javier Antonio Neblina Vega2015–201863rd Congress2018Lorenia Valles Sampedro2018–202264th Congress2021Lorenia Valles Sampedro2021–202465th Congress20242024–202766th Congress
Presidential elections + Sonora's 3rd district Election District won by Party or coalition % 2018Andrés Manuel López Obrador Juntos Haremos Historia 58.84082024Claudia Sheinbaum Pardo Sigamos Haciendo Historia 61.9564
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