Bali residents about a number of 4 million inhabitants, with 92.3% majority Hindu religion. Other religions are Buddhism, Islam, Protestantism, and Catholicism.
Apart from tourism, the population of Bali is also a living from agriculture and fisheries. Some also choose to become artists. The language used in Bali is Indonesian, Balinese, and English especially for those who work in the tourism sector.
Balinese and Indonesian language is the language most widely use in Bali, and as with other Indonesian citizens, most Balinese people are bilingual or even trilingual. Although there are several dialects in the language of Bali, the Balinese people generally use a form of Balinese language intercourse as an option in communicating. Traditionally, the use of various dialects of the Balinese language is determined based on the color of the chess system in Hindu Dharma and clan membership (the term of Bali: soroh, gotra), although implementation of these traditions tend to decrease.
English is a third language (and the primary foreign language) for many of the people of Bali, which is influenced by the great needs of the tourism industry. Those employees who work at tourist information centers in Bali, often also understand some of the foreign language with sufficient competence.
Source : Bali-Wikipedia