1st federal electoral district of Tamaulipas

Tamaulipas lost a district in 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, however, was not affected. It covers the entirety of the municipality of Nuevo Laredo in the state's extreme north. The head town (), where results from individual polling stations are gathered together and tallied, is the city of Nuevo Laredo. The district, comprising 210 electoral precincts (), reported a population of 425,055 in the 2020 Census. ==Previous districting schemes==

2017–2022 :Between 2017 and 2022, Tamaulipas accounted for nine single-member congressional seats. The 1st district's head town was at Nuevo Laredo and it covered that city and its surrounding municipality (206 precincts). :*Camargo, Guerrero, Mier, Miguel Alemán and Nuevo Laredo. 1996–2005 :In the 1996 scheme, under which Tamaulipas lost a single-member seat, the district had its head town at Nuevo Laredo and it comprised six municipalities: ==Deputies returned to Congress==