The U.S. government estimates the total population at 205.8 million (July 2016 estimate). According to the 2010 census, 64.6 percent of the population is Roman Catholic and 22 percent is Protestant. Approximately 60 percent of Protestants belong to Pentecostal churches, 18 percent to “mainstream” Protestant churches, and 22 percent to other Protestant groups. Other Christian groups, each constituting less than 1 percent of the population, include Jehovah’s Witnesses and The Church of Jesus Christ of Latter-day Saints (Mormons). Atheists, agnostics, those who claim no religion, and those whose religion is unknown make up roughly 8 percent of the population.

Other groups, each constituting less than 1 percent of the population, include Buddhists, Jews, Muslims, Hindus, and African and syncretic religious groups such as Candomble and Umbanda. There are a small number of adherents of indigenous religious beliefs.

According to the 2010 census, there are approximately 35,200 Muslims, while the Federation of Muslim Associations of Brazil states the number at approximately 1.5 million. Other observers estimate the number of Muslims to be between 400,000 and 500,000. There are significant numbers of Muslims in Sao Paulo, Rio de Janeiro, Curitiba, and Foz do Iguazu, as well as in smaller cities in the states of Parana and Rio Grande do Sul.

According to the Jewish Confederation of Brazil, there are approximately 125,000 Jews, 65,000 of whom reside in Sao Paulo State and 25,000 in Rio de Janeiro State. Many other cities have smaller Jewish communities.