The 1st federal electoral district of Mexico City (; previously "of the Federal District") is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 22 such districts in Mexico City.
It elects one deputy to the lower house of Congress for each three-year legislative session 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.
of the National Regeneration Movement (Morena) was elected for the district in the 2024 general election but resigned his seat at the start of the congressional session. He was replaced by his alternate, .
Under the 2023 districting plan adopted by the National Electoral Institute (INE), which is to be used for the 2024, 2027 and 2030 federal elections, the 1st district covers 248 electoral precincts () across the northern portion of the borough (alcaldÃÂa) of Gustavo A. Madero. This makes it the northernmost congressional district in the capital.
The district reported a population of 423,839 in the 2020 Census.
1996, 2005 and 2017 plans
1978âÂÂ1996