Pompeia is a municipality in the state of São Paulo in Brazil. The population is 22,172 within an area of 784 km. In 2000, its Human De…Pompeia is a municipality in the state of São Paulo in Brazil. The population is 22,172 within an area of 784 km. In 2000, its Human Development Index was 0.816. The region of Pompeia was originally inhabited by Kaingang natives, called Coroados by the Portuguese colonizers. The first settlers arrived in 1852, when the Imperial Government granted João Antonio de Moraes, Francisco de Paula Morais and Francisco Rodrigues de Campos occupancy over the lands in the surroundings of Rio do Peixe and Aguapeí River (São Paulo).