Rio de Janeiro is one of the 27 states of Brazil.Rio de Janeiro has the second largest economy of Brazil behind only São Paulo state. The state of Rio de Janeiro is located within the Brazilian geopolitical region classified as the Southeast (assigned by IBGE). Rio de Janeiro share borders with all the other states in the same Southeast macroregion: Minas Gerais (N and NW), Espírito Santo (NE) and São Paulo (SW).
It is bounded on the east and south by the Atlantic Ocean. Rio de Janeiro has an area of 43,653 km². Its capital is the city of Rio de Janeiro, which was the capital of the Portuguese Colony of Brazil from 1763 to 1815, capital of the United Kingdom of Portugal, Brazil and the Algarves from 1815 to 1822, and capital of independent Brazil from 1822 to 1960.