# 18th federal electoral district of the State of Mexico

The 18th federal electoral district of the State of Mexico (Spanish: Distrito electoral federal 18 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 18th 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 18th district covers five of the state's 125 municipalities:
* Huixquilucan, Isidro Fabela, Jilotzingo, Xonacatlán and Otzolotepec (except for its extreme western portion, which belongs to the 40th district).
The district's head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the city of Huixquilucan de Degollado. In the 2020 Census, the district reported a total population of 473,788.

## 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 18th district was situated as follows:

### 2017–2022

    The municipalities of Huixquilucan, Jilotzingo, Otzolotepec and Xonacatlán. The head town was at Huixquilucan de Degollado.

### 2005–2017

    The municipalities of Huixquilucan, Isidro Fabela, Jilotzingo, Lerma and Xonacatlán. The head town was at Huixquilucan de Degollado.

### 1996–2005

    The municipalities of Huixquilucan, Jilotzingo, Otzolotepec and Xonacatlán. The head town was at Huixquilucan de Degollado.

### 1978–1996

    A portion of Naucalpan de Juárez.

## Deputies returned to Congress

Eighteenth federal electoral district of the State of Mexico :
| Election | Deputy | Term | Legislature |
| 1979 | Enrique Jacob Soriano | 1979–1982 | 51st Congress |
| 1982 | José Armando Gordillo Mandujano | 1982–1985 | 52nd Congress |
| 1985 | Amado Olvera Castillo | 1985–1988 | 53rd Congress |
| 1988 | Astolfo Vicencio Tovar [es] | 1988–1991 | 54th Congress |
| 1991 | Francisco Gárate Chapa | 1991–1994 | 55th Congress |
| 1994 | Salvador Ávila Zúñiga | 1994–1997 | 56th Congress |
| 1997 | Raúl Martínez Almazán | 1997–2000 | 57th Congress |
| 2000 | Alejandro Enrique Gutiérrez Gutiérrez | 2000–2003 | 58th Congress |
| 2003 | Félix Adrián Fuentes Villalobos | 2003–2006 | 59th Congress |
| 2006 | Claudia Sánchez Juárez | 2006–2009 | 60th Congress |
| 2009 | Alfonso Navarrete Prida | 2009–2012 | 61st Congress |
| 2012 | Fernando Maldonado Hernández | 2012–2015 | 62nd Congress |
| 2015 | Alfredo del Mazo Maza Miguel Ángel Ramírez Ponce | 2015–2017 2017–2018 | 63rd Congress |
| 2018 | Claudia Reyes Montiel [es] | 2018–2021 | 64th Congress |
| 2021 | José Antonio García García | 2021–2024 | 65th Congress |
| 2024 | Claudia Sánchez Juárez | 2024–2027 | 66th Congress |