5th federal electoral district of Durango
The 5th federal electoral district of Durango (Distrito electoral federal 05 de Durango) was a Mexican electoral district from 1977 to 2006. During its existence, it returned one deputy to the Chamber of Deputies for each three-year legislative session by means of the first-past-the-post system. Votes cast in the district also counted towards the calculation of proportional representation ("plurinominal") deputies elected from the country's electoral regions.
Suspended in 1930, Durango's 5th district was re-established as part of the 1977 electoral reforms, which increased the number of single-member seats in the Chamber of Deputies from 196 to 300. Under the reforms, Durango's seat allocation rose from four to six. It was dissolved by the Federal Electoral Institute in 2005, when the state's population no longer warranted five districts. The re-established 5th district was therefore first contested in the 1979 mid-term election and elected its last deputy in the 2003 mid-terms.