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The population is unequally distributed amongst the provinces: about 60% live in the Pampa region (21% of the total area), including 20 million people in Buenos Aires Province; Córdoba Province Santa Fe Province and the Autonomous City of Buenos Aires have 3 million each. Seven other provinces have over one million people each: Mendoza, Tucumán, Entre Ríos, Salta, Chaco, Corrientes and Misiones. Tucumán is the most densely populated with 60 per square kilometre (160/sq mi), the only Argentine province more densely populated than the world average, while the southern province of Santa Cruz has around 1 inhabitant per square kilometre (2.6/sq mi).