Ibiúna is a municipality in the state of São Paulo in Brazil. It is part of the Metropolitan Region of Sorocaba. The population is 79,479 in an are…Ibiúna is a municipality in the state of São Paulo in Brazil. It is part of the Metropolitan Region of Sorocaba. The population is 79,479 in an area of 1058.08 km². The elevation is 860 m. Located in the middle of a valley, its main economical activity/resources are provided from agriculture and the city has been recently turned to a tourist city a few years ago. The whole Ibiuna territory encompasses rainforests, bushes, and hundreds of kilometers of native vegetation and wildlife.