Sao Paulo is the capital of the state of Sao Paulo in southeastern Brazil. It is located at 23°32 S, 46°37 W, 400 km (250 miles) from Rio de Janeiro, and 1,030 km (640 miles) from federal capital Brasilia.
The city has an area of 1,523.0 square kilometres (588.0 sq. miles) and a population of just over 11 million (2006 IBGE estimate), which makes it the largest and most populous city in the Southern Hemisphere and a global city.
Nineteen million people live in the greater Sao Paulo metropolitan area as defined by the government , making it one of the five most populous in the world. However, when the many adjacent metropolitan areas, such as Baixada Santista, Sao Jose dos Campos, Campinas, Sorocaba, etc. are included, such as in the Extended Metropolitan Area (Complexo Metropolitano Estendido) Sao Paulo, there are nearly 29 million inhabitants, more than any other city in the world except Tokyo, Japan with 35 million.The region forms an even larger urban corridor or megalopolis with Rio de Janeiro and Volta Redonda.