City in Brazil, 72 km/45 mi NW of its port Santos; population (1986) 8,490,700, metropolitan area 15,280,000. It is 900 m/3,000 ft above sea level, and 2 degrees S of the Tropic of Capricorn. It is South America's leading industrial city, producing electronics, steel, and chemicals; it has meat-packing plants and is the centre of Brazil's coffee trade. It originated as a Jesuit mission in 1554.