Votes cast in the district also counted towards the calculation of proportional representation ("plurinominal") deputies elected from the country's electoral regions.

It was dissolved during the Federal Electoral Institute's 2005 redistricting process because the state's population no longer warranted ten districts.

The head town (cabecera distrital), where results from individual polling stations were gathered together and tallied, was the port city of Acapulco.

[5][6] 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.

[7] The newly created 10th district had its head town at Chilapa de Álvarez in the state's Mountain region and it comprised the municipalities of Ahuacuotzingo, Atenango del Río, Copalillo, Cualac, Chilapa, Huamuxtitlán, Huitzuco, Mártir de Cuilapán, Olinalá, Xochihuehuetlán and Zitlala.