Cajamar is a municipality in the State of São Paulo, located in Greater São Paulo. The estimated population in 2009 was 63,675 inhabitants and the area is 128.4 square kilometers, resulting in a density of 493.5 inhabitants / km ². It is bordered to the north Jundiaí, Franco da Rocha and Caieiras the east, the capital of the southeast, Santana do Parnaíba and Pirapora do Bom Jesus in the west.
Became a municipality in 1959, when emancipated from Santana do Parnaíba. In the district headquarters, in the city are also the districts of Jordanésia and Polvilho.