São Paulo is a state in Brazil. It is the major industrial and economic powerhouse of the Brazilian economy. Named after Saint Paul, São Paulo has the largest population, industrial complex, and economic production in the country. It is the richest state in Brazil. The capital, São Paulo, is also the largest city in South America.
With over 40 million inhabitants, São Paulo is the most populous state in Brazil and the third most populous political unit of South America, only surpassed by that country and Colombia, ahead of all other South American countries. Sao Paulo's capital city is ranked seventh among the largest city on the planet and its metropolitan area, with 19,223,897 inhabitants, is also the 7th biggest in the World.