Rio de Janeiro is one of the 27 federative units of Brazil. It has the second largest economy of Brazil, with the largest being that of the state of São Paulo. The state, which has 8.2% of the Brazilian population, is responsible for 9.2% of the Brazilian GDP.

São Gonçalo is a municipality in Rio de Janeiro, Brazil, in the Southest region. It is located in the Metropolitan Region of Rio de Janeiro, having land limits with the municipalities of Niterói, Maricá and Itaboraí, and a maritime limit, by Guanabara Bay, with the capital, Rio de Janeiro. According to the 2022 census, it has a population of 896,744 inhabitants, making it the second most populous municipality in the state and the 18th most populous in the country.