Sumaré is a city in the State of São Paulo, Brazil. It is part of the Metropolitan Region of Campinas. The population is 265,955 (2015 est.) in an area of 153.47 km². The elevation is 583 m. Sumaré was founded in 1868, after being upgraded to a city. Its old name was Rebouças. There is a Honda plant located there for Honda Brazil.