São Paulo represents the third biggest population centre of the earth to Mexico city and Tokyo. In large São Paulo live today in approximately 20 million humans.
The city owes its ascent to the cultivation of coffee and the capital accumulation due to which made the industrialization possible. The influx developed dramatically and holds - decreased - for far on with it all the problems, which are connected with it.
São Paulo was above all the goal of immigrants from the northeast of Brazil, where both the dryness-troubled Sertão of the rural interior and - in a later phase - which overfilled and few possibilities for employment of offering coastal towns the drift areas were.
A goal of the internal migration was first the cultivation of coffee in the southeast Brazilian neighbour state Paraná, from where after end of the there coffee boom since exit of the 60's a drift took place above all also into the metropolis São Paulo. A desire goal of the Migranten from the northeast, as well as strengthens from the southeast, was it later however to find during the fast expanding industrial development or in the flowering construction industry a job.

For the 80's natural growth contributes clearly more to the increase in the population than the immigration. This development is due despite removing birth rates to the high portion of younger urban population, which the Zuwanderung decreasing/going back now had brought with itself.