The first federal electoral district of Chihuahua (Distrito electoral federal 01 de Chihuahua) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of nine such districts currently operating in the state of Chihuahua. 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 first region.

District territory

Under the 2022 districting plan, which is to be used for the 2024, 2027 and 2030 federal elections, the first district covers the northern part of the Ciudad Juárez urban area. Its head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is Ciudad Juárez.

Previous districting schemes

Between 2017 and 2022, the first district covered a portion of the Ciudad Juárez urban area. Under the 2005 districting scheme, the district covered the municipalities of Ahumada, Ascensión, Guadalupe, Janos, Práxedis G. Guerrero and the southern part of the municipality of Juárez. The district's head town was the city of Ciudad Juárez. Chihuahua lost its tenth district in the 1996 redistricting process. 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. 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, Chihuahua's seat allocation rose from six to ten. The first district was located in the centre of the state and covered a portion of the state capital, the city of Chihuahua.

Deputies returned to Congress

Results

The corresponding page on the Spanish-language Wikipedia contains full electoral results from 1964 to date.