Aguascalientes is the capital of the Mexican state of the same name and its most populous city, as well as the head of the Aguascalientes Municipality; with a population of 948,990 inhabitants in 2012 and 1,225,432 in the metro area. The metropolitan area also includes the municipalities of Jesús María and San Francisco de los Romo. It is located in North-Central Mexico, which roughly corresponds to the Bajío region within the central Mexican plateau.