Votes cast in the district also counted towards the calculation of proportional representation ("plurinominal") deputies elected from the third region.

[1][2] Oaxaca's 11th district was created as part of the Federal Electoral Institute's 1996 redistricting process, which assigned the state an additional district to the ten it already had.

[3][4] In the 2017 redistricting process, Oaxaca's seat allocation was again reduced to ten.

Throughout its existence, the 11th district's head town (cabecera distrital), where results from individual polling stations were gathered together and tallied, was the city of Pinotepa Nacional.

[3] Under the 2005 districting plan, it covered 40 municipalities in the state's Costa Chica region.