Federal electoral districts of Sonora since 2022Sonora under the 2017–2022 districting plan
The seventh federal electoral district of Sonora(Distrito electoral federal 07 de Sonora) is one of the
300 electoral districts into which
Mexico is divided for elections to the federal
Chamber of Deputies and one of seven such districts in the
state of
Sonora.
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. Votes cast in this district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the
first region.[1][2]
The district's head town (cabecera distrital), where results from individual polling stations are gathered together and collated, is the city of
Navojoa.[5]
Previous districting schemes
1996–2022
In the 2017[6] and 2005[7] districting plans, the 7th district had the same configuration as at present. Under the 1996 plan, it covered only the six southernmost municipalities, with
Rosario assigned to the
4th district.[7]
1978–1996
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, Sonora's seat allocation rose from four to seven.[8] The newly created 7th district comprised the municipality of
Cajeme.[9]
^"Sonora". División del Territorio de la República en 300 Distritos Electorales Uninominales para Elecciones Federales.
Diario Oficial de la Federación. 29 May 1978. p. 40. Retrieved 19 July 2024.