Christianity is the largest religion in Brazil, with Catholic Christianity having the most adherents. Brazil also has the largest number of Catholic Christians in the world. [1]
Pew Research found in 2013: "Since the Portuguese colonized Brazil in the 16th century, it has been overwhelmingly Catholic. And today Brazil has more Roman Catholics than any other country in the world – an estimated 123 million." [2]
"Brazil’s total population more than doubled over the last four decades, increasing from approximately 95 million to more than 190 million ... Brazil’s Catholic population fell slightly from 125 million in 2000 to 123 million a decade later, dropping from 74% to 65% of the country’s total population."