# 23rd federal electoral district of the State of Mexico

The 23rd federal electoral district of the State of Mexico (Spanish: Distrito electoral federal 23 del Estado de México) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 40 such districts in the State of Mexico.
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 fifth region.
The 23rd district was created by the 1977 electoral reforms, which increased the number of single-member seats in the Chamber of Deputies from 196 to 300. Under that plan, the State of Mexico's seat allocation rose from 15 to 34. The new districts were first contended in the 1979 mid-term election.

## District territory

Under the National Electoral Institute's 2022 districting plan, which is to be used for the 2024, 2027 and 2030 federal elections, the 23rd district is located between Toluca and Mexico City and covers eight of the state's 125 municipalities:
* Almoloya del Río, Atizapán, Capulhuac, Lerma, Ocoyoacac, Texcalyacac, Tianguistenco and Xalatlaco.
The district's head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the city of Lerma de Villada. In the 2020 Census, the district reported a total population of 419,045.

## Previous districting schemes

Evolution of electoral district numbers :
| | 1972 | 1978 | 1996 | 2005 | 2017 | 2022 |
| State of Mexico | 15 | 34 | 36 | 40 | 41 | 40 |
| Chamber of Deputies | 196 | 300 | 300 | 300 | 300 | 300 |
| Sources: |||||||
Under the previous districting plans enacted by the INE and its predecessors, the 23rd district was situated as follows:

### 2017–2022

    Nine municipalities in the east of the Valley of Toluca: Almoloya del Río, Atizapán, Capulhuac, Lerma, Ocoyoacac, Ocuilan, Texcalyacac, Tianguistenco and Xalatlaco. The head town was at Lerma de Villada.

### 2005–2017

    The municipalities of Almoloya de Juárez, Amanalco, Donato Guerra, Ixtapan del Oro, Valle de Bravo, Villa de Allende and Villa Victoria. The head town was at Valle de Bravo.

### 1996–2005

    The municipalities of Amanalco, Donato Guerra, Ixtapan del Oro, Otzoloapan, Santo Tomás, Temascaltepec, Valle de Bravo, Villa de Allende, Zacazonapan and Zinacantepec. The head town was at Valle de Bravo.

### 1978–1996

    A portion of the municipality of Nezahualcóyotl.

## Deputies returned to Congress

Twenty-third federal electoral district of the State of Mexico :
| Election | Deputy | Term | Legislature |
| 1979 | Juan Alvarado Jacco | 1979–1982 | 51st Congress |
| 1982 | Juan de Dios Salazar Salazar | 1982–1985 | 52nd Congress |
| 1985 | Juan Alvarado Jacco | 1985–1988 | 53rd Congress |
| 1988 | Enrique Riva Palacio Galicia [es] | 1988–1991 | 54th Congress |
| 1991 | Jaime Serrano Cedillo | 1991–1994 | 55th Congress |
| 1994 | Virgilia Noguera Corona | 1994–1997 | 56th Congress |
| 1997 | Francisco Crescencio Rodríguez García | 1997–2000 | 57th Congress |
| 2000 | José Jaimes García | 2000–2003 | 58th Congress |
| 2003 | Víctor González Huerta | 2003–2006 | 59th Congress |
| 2006 | María Mercedes Colín Guadarrama | 2006–2009 | 60th Congress |
| 2009 | José Ignacio Pichardo Lechuga | 2009–2012 | 61st Congress |
| 2012 | Blanca Estela Gómez Carmona | 2012–2015 | 62nd Congress |
| 2015 | José Ignacio Pichardo Lechuga | 2015–2018 | 63rd Congress |
| 2018 | David Orihuela Nava | 2018–2021 | 64th Congress |
| 2021 | Martha Azucena Camacho Reynoso [es] | 2021–2024 | 65th Congress |
| 2024 | José Luis Hernández Pérez | 2024–2027 | 66th Congress |