Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The demographics of São Paulo City are evidence of a uniquely large and ethnically diverse metropolis. It is the largest city in Brazil with a population defined by a long history of international immigration. São Paulo City is home to more than 11 million people, accounting for about 25% of the population of São Paulo State. Portuguese remains the most widely spoken language and São Paulo is the largest city in the Portuguese speaking world.