The 1st federal electoral district of Tlaxcala () is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of three such districts in the state of Tlaxcala.
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.
The current member for the district, re-elected in the 2024 general election, is Alejandro Aguilar López of the Labour Party (PT).
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, Tlaxcala's 1st comprises 239 electoral precincts () across 19 of the state's municipalities:
The head town (), where results from individual polling stations are gathered together and tallied, is the city of Apizaco. The district reported a population of 446,499 in the 2020 Census.
2017âÂÂ2022