 The metropolitan areas of Córdoba and Rosario have around 1.3 million inhabitants each, and six other cities (Mendoza, Tucumán, La Plata, Mar del Plata, Salta and Santa Fe) have at least half a million people each.The population is unequally distributed amongst the provinces, with about 60% living in the Pampa region (21% of the total area), including 15 million people in Buenos Aires Province, and 3 million each in Córdoba Province, Santa Fe Province and the Autonomous City of Buenos Aires.Seven other provinces each have about one million people