[1][a] 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 the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the fourth region.

[3][4] Guerrero lost a congressional seat in the National Electoral Institute's 2022 redistricting process.

Under the new districting plan, which will be used for the 2024, 2027 and 2030 federal elections,[5] the 7th district covers six municipalities in the central part of the state:[6] The district's head town (cabecera distrital), where results from individual polling stations are gathered together and tallied, is the state capital, the city of Chilpancingo.

[11] The newly restored 7th district's head town was at Acapulco and it covered a part of that city and the rural portion of its surrounding municipality.