Serra Negra is a municipality in the state of São Paulo, Brazil. It belongs to the meso-region of Campinas. Population (2000) was 24,953 inhabitants. Total area: 203,5 km², demographic density: 112 inhab./km²
Serra Negra was founded on 23 September 1828, but at least a century before that the region was already inhabited and was on the passageway between São Paulo and Minas Gerais. It was elevated to the status of city on 21 April 1885. At the end of the 19th century, the region received a large influx of European immigrants, mostly Italians, who came to work on coffee farms. Mineral water sources were discovered by Luiz Rielli in 1928 and the city became a much sought-after spa town (it is known as the "City of Health").