Mexico City Mexico Population 2024 By Religion. Roman catholic is the most popular religion in mexico with 82.7% of the population associated with it. Mexico city, city and capital of mexico, synonymous with the federal district, although the term can also apply to the city’s metropolitan area to the west, north, and east.

Although mexico does not have an official religion, many of its most important holidays and festivals are associated with the roman catholic liturgical calendar. Mexico does not have an official religion.