São Pedro is a municipality in the state of São Paulo in Brazil. The population is of 35,980 in an area of 611.278 km². The brothers Joaq…São Pedro is a municipality in the state of São Paulo in Brazil. The population is of 35,980 in an area of 611.278 km². The brothers Joaquim, José and Luiz Teixeira de Barros, who came from Itu, bought the Pinheiros Sesmaria where São Pedro is today. They brought with them: slaves, employees and family members. The Picadão, a road that led from São Paulo to Cuiabá, passed through this same area and where the historic center is today was the so-called Pouso do Pidadão, which was looked after by the cattle driver Floriano de Costa Pereira, known as Florianão.