Guarujá (Portuguese pronunciation: [ɡwaɾuˈʒa]) is a municipality in the São Paulo state of Brazil. It is part of the Metropolitan Region of Baixada Santista. The population is 311,230 (2015 est.) in an area of 143.58 km2 (55.44 sq mi). This place name comes from the Tupi language, and means "narrow path". The population is highly urbanized.