Ciudad Madero
Ciudad Madero is a coastal city in the Gulf of Mexico, located in the southeast of the state of Tamaulipas, it is the seventh most populous municipality in the state, with an estimated population of 209,175 inhabitants, with an area of 46.6 km². It is part of the metropolitan area of Tampico. Within the municipality is the Francisco I. Madero refinery, which positions the city as one of the most important oil refining centers in the country.