The 10th federal electoral district of Oaxaca () is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 10 such districts in the state of Oaxaca.
It elects one deputy to the lower house of Congress for each three-year legislative period 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 third region.
Oaxaca's 10th district was created as part of the 1977 electoral reforms. Under the 1975 districting plan, Oaxaca had only nine congressional districts; under the 1977 reforms, the number increased to ten. The newly created district elected its first deputy, to the 51st Congress, in the 1979 legislative election.
The current member for the district, elected in the 2024 general election, is Carmelo Cruz Mendoza 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, the 10th district covers 275 precincts () across 77 municipalities. The link provides a complete list of the municipalities covered.
The head town (), where results from individual polling stations are gathered together and tallied, is the city of Miahuatlán de Porfirio Díaz in the Sierra Sur region. The district reported a population of 442,838 in the 2020 census and, with Indigenous and Afrodescendent inhabitants accounting for over 63% of that total, it is classified by the INE as an indigenous district.
Previous districting schemes + Evolution of electoral district numbers 1974 1978 1996 2005 2017 2023 Oaxaca 9 10 11 11 10 10 Chamber of Deputies 196 300Sources:
2017–2022 Oaxaca's 11th district was dissolved in the 2017 redistricting process. Under the 2017 to 2022 scheme, the 10th district had its head town at the city of Miahuatlán and it covered 65 municipalities. The link provides a complete list of the municipalities covered.
2005–2017 Between 2005 and 2017, the district comprised 56 municipalities and its head town was Miahuatlán. The link provides a complete list of the municipalities covered. The link contains comparative maps of the 2005 and 1996 schemes.
1996–2005 Between 1996 and 2017, Oaxaca's seat allocation was increased to 11. Under the 1996 districting plan, the head town was at Miahuatlán and it covered 60 municipalities. 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, Oaxaca's seat allocation rose from nine to ten. The new 10th district had its head town at Santo Domingo de Tehuantepec in the Istmo de Tehuantepec region. The link provides a complete list of the municipalities the district covered.
Deputies returned to Congress
+ Oaxaca's 10th district Election Deputy Party Term Legislature1979Ignacio Villanueva Vázquez1979–198251st Congress1982Joseph Stephan Acar1982–198552nd Congress1985Alfredo López Ramos1985–198853rd Congress1988Jorge Camacho Cabrera1988–199154th Congress1991Francisco Felipe Ángel Villarreal1991–199455th Congress1994María del Carmen Ricárdez Vela1994–199756th Congress1997Claudio Marino Guerra López1997–200057th Congress2000Jaime Arturo Larrazábal Bretón2000–200358th Congress2003Héctor Pablo Ramírez Puga2003–200659th Congress2006Benjamín Hernández Silva2006–200960th Congress2009Héctor Pablo Ramírez Puga2009–201261st Congress2012Aída Fabiola Valencia Ramírez2012–201562nd Congress2015Óscar Valencia García2015–201863rd Congress2018Daniel Gutiérrez Gutiérrez2018–202164th Congress2021Daniel Gutiérrez Gutiérrez2021–202465th Congress2024Carmelo Cruz Mendoza2024–202766th Congress
Presidential elections + Oaxaca's 10th district Election District won by Party or coalition % 2018Andrés Manuel López Obrador Juntos Haremos Historia 64.06282024Claudia Sheinbaum Pardo Sigamos Haciendo Historia 78.0302
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