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Ciudad Vieja (Spanish pronunciation: [sjuˈðað ˈβjexa]) is a town and municipality in the Guatemalan department of Sacatepéquez. According to the 2018 census, the town has a population of 32,802 and the municipality a population of 33,405. Ciudad Vieja was the second site of Santiago de los Caballeros de Guatemala, the colonial capital of the country.