First Federal Electoral District of Chihuahua

The First Federal Electoral District of Chihuahua "(I Distrito Electoral Federal de Chihuahua)" 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 nine such districts in the state of Chihuahua.
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.
District territory.
Under the 2005 districting scheme, the district covers the municipalities of Ahumada, Ascensión, Guadalupe, Janos, Práxedis G. Guerrero and the southern part of the municipality of Juárez.
The district's head town "(cabecera distrital)", where results from individual polling stations are gathered together and collated, is the city of Ciudad Juárez.
Previous districting schemes.
1996–2005 district.
Between 1996 and 2005, the First District's territory was in the north and north-east of the state, covering the municipalities of Ahumada, Ascensión, Buenaventura, Casas Grandes, Galeana, Gómez Farías, Guadalupe, Ignacio Zaragoza, Janos, Madera, Matachí, Namiquipa, Nuevo Casas Grandes, Práxedis G. Guerrero and Temósachi; it was centred on the city of Nuevo Casas Grandes.
1979–1996 district.
Between 1979 and 1996, the First District was located in the centre of the state and was centred on the state capital, the city of Chihuahua