Americana is a municipality located in the Brazilian state of São Paulo. It is part of the Metropolitan Region of Campinas. The population is 237,2…Americana is a municipality located in the Brazilian state of São Paulo. It is part of the Metropolitan Region of Campinas. The population is 237,240 in an area of 133.91 km². The original settlement developed around the local railway station, founded in 1875, and the development of a cotton weaving factory in a nearby farm.