Pew's figures on Germany and the church figures. According to the CIA Factbook and the Pew Research Center, the five countries with the largest number of Catholics are, in decreasing order of Catholic population : Brazil Mexico Philippines United States Italy The country where the membership of the church is the largest percentage of the population is Vatican City at 100%, followed by East Timor at 97%. According to the Census of the 2020 Annuario Pontificio (Pontifical Yearbook), the number of baptized Catholics in the world was about 1.329 billion at the end of 2018. The research initiative Catholics & Cultures compiles data on Catholic demographics, including from the Annuario Pontificio, by country. Conflicting numbers can be found in 2013 research conducted by the Brazilian polling institute Datafolha. This report states that the percentage of the population in Brazil of Catholic religion, over the age of 16 years, is just 57%, in contrast to the 64.63% published by CIA and to the 68.6% of Pew Research Center. Also, the 2010 Mexican Census showed this percentage to be 83.9%against a 91.89% number in the CIA World Factbook. By country By clicking on the icons in the column titles, the table can be re-ordered by column. By dependent territory By region These percentages were calculated by using the above numbers. The first percentage, 4th column, is the percentage of population that is Catholic in a region (number in the region x 100 / total population of the region). The last column shows the national Catholic percentage compared to the total Catholic population of the world (number in the region x 100 / total RC population of the world). Africa Americas Asia Europe Middle East Oceania See also The term Roman Catholic Christianity by country List of Catholic archdioceses (by country and continent) List of Catholic dioceses (alphabetical) (including archdioceses) List of Catholic dioceses (structured view) (including archdioceses) List of Christian denominations by number of members List of living cardinals (sortable by name, country, and birthdate) List of popes List of religious populations State religion#Roman Catholicism Eastern Catholic Churches References External links