New figures showed that less than two-thirds of Brazilians identify as Catholics, marking a record decline in what is considered to be the world's largest Catholic country.
Just over 64 percent of the Brazilian population of 191 million identifies as Catholic, said the figures, taken from the 2010 census.
In the year 2000, when the last census was carried out, Catholics comprised almost 74 percent of the population, down significantly from almost 92 percent in 1970.
Meanwhile, the number of Brazilian Christian evangelists has risen, up roughly seven percent to 22.2 percent from 15.4 percent in 2000.
Eight percent of Brazilians reported being atheist in 2010.
Pope Benedict XVI is expected to travel to the South American nation in July 201 3 for a youth festival.