Brazil is the largest Catholic country in the world, with an estimated Catholic population of 115 million, ahead of Mexico and the Philippines, with 101 million and 89 million Catholics, respectively. Nevertheless, Brazil's Catholic population is shrinking. By 2050, today's largest Catholic country could have a majority Protestant population.
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World Population Review. (May 5, 2026). Top-10 countries with the largest number of Roman Catholic population in 2026 (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/214760/10-countries-with-the-largest-number-of-catholics/
World Population Review. "Top-10 countries with the largest number of Roman Catholic population in 2026 (in millions)." Chart. May 5, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/214760/10-countries-with-the-largest-number-of-catholics/
World Population Review. (2026). Top-10 countries with the largest number of Roman Catholic population in 2026 (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/214760/10-countries-with-the-largest-number-of-catholics/
World Population Review. "Top-10 Countries with The Largest Number of Roman Catholic Population in 2026 (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 5 May 2026, /statistics/214760/10-countries-with-the-largest-number-of-catholics/
World Population Review, Top-10 countries with the largest number of Roman Catholic population in 2026 (in millions) ÌÇÐÄÆƽâ°æ, /statistics/214760/10-countries-with-the-largest-number-of-catholics/ (last visited July 28, 2026)
Top-10 countries with the largest number of Roman Catholic population in 2026 (in millions) [Graph], World Population Review, May 5, 2026. [Online]. Available: /statistics/214760/10-countries-with-the-largest-number-of-catholics/
