The Eighteenth Federal Electoral District of the Federal District (XVIII Distrito Electoral Federal del Distrito Federal) is one of the 300 Electoral Districts into which Mexico is divided for the purpose of elections to the federal Chamber of Deputies and one of 27 such districts in the Federal District ("DF" or Mexico City).
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.
Eighteenth Federal Electoral District of the Federal District Wikipedia
Under the 2005 districting scheme, the DF's Eighteenth District covers the northern portion of the borough (delegación) of Iztapalapa.
Between 1996 and 2005, the 18th District was located in the same area, and covered practically the same area of Iztapalapa.L Legislature
1976–1979: Hugo Díaz Velázquez (PRI)
1979–1982: Leobardo Salgado Arroyo (PRI)
1982–1985: Joaquín del Olmo Reyes (PRI)
1994–1997: Armando Gamboa Enríquez (PRI)
1997–2000: Ángel de la Rosa Blanco (PRD)
2000–2003: Raúl García Velázquez (PAN)
2003–2006: Horacio Martínez Meza (PRD)
2006–2009: David Mendoza Arellano (PRD)