The population is unequally distributed: about 60% live in the Pampas region (21% of the total area), including 15 million people in Buenos Aires province. The provinces of Córdoba and Santa Fe, and the 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. With , Tucumán is the only Argentine province more densely populated than the world average; by contrast, the southern province of Santa Cruz has around .