The last column shows the regional catholic percentage out of the total catholic population of the world (number in the region × 100 / world catholic population). In 2025, the world christian database reported 1.272 billion catholics Countries by total number of catholics (2010) Ecclesia catholica), also known as the roman catholic church, [note 1] is the largest christian church, with 1.27 to 1.41 billion baptized catholics worldwide as of 2025 [4][5][8] it is among the world's oldest and largest international institutions and has played a prominent role in the history and development of. According to a pew estimation in 2025, christians made up to 2.3 billion of the worldwide population of about 8 billion people
The list of religious populations article provides a comprehensive overview of the distribution and size of religious groups around the world This article aims to present statistical information on the number of adherents to various religions, including major faiths such as christianity, islam, hinduism, buddhism, and others, as well as smaller religious communities The roman catholic church in the united states is part of the worldwide latin church and the wider catholic communion, in communion with the pope of rome Demographics adherence to catholicism in europe (2010) about 35% [1] of the population of europe today is catholic, but only about a quarter of all catholics worldwide reside in europe. Although mexico is the second largest catholic country in the world in terms of members, catholicism has been declining over the past 30 years, from 89.7% of the population in 1990 to 77.7% in 2020.
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