Monclova is a city located in the northern Mexican state of Coahuila. It serves as the seat of the surrounding municipality of the same name.
According to the 2015 census, the city had a population of 231,107 inhabitants. Its metropolitan area has a total population of 381,432 and a population density of 29.88 inhabitants per square kilometer. Monclova is ranked as the third-largest city and metropolitan area in the state by population, following Torreón and Saltillo.