Aguascalientes is the capital of the state of Aguascalientes and is its most populous city, with a metropolitan population of 1,000,000. It is located in North-Central Mexico. It is part of the macroregion of Bajío, which is among the safest and most prosperous regions in Mexico. It was part of the kingdom of Nueva Galicia. In 1835 Aguascalientes became the capital of the Free and Sovereign State of Aguascalientes. Aguascalientes has been called the cleanest city in Latin America. Aguascalientes is experiencing an ongoing social, economic, and aesthetic revitalization process. Aguascalientes has a population which includes Japanese, Koreans, and Germans.
It stands on the banks of the Aguascalientes river, 1880 meters above sea level, at 21°51′N 102°18′W. It is the municipal seat for the Aguascalientes Municipality. The Aguascalientes metropolitan area includes the municipality of Jesús María and San Francisco de los Romo. It was a Chichimeca Indian territory.