What is the major religion practiced in Mexico City?

The major religion practiced in Mexico City is Roman Catholicism. Around 87.5% of the city's population identifies as Catholic, according to the 2020 census. Catholicism was introduced to Mexico during the Spanish colonial period and has remained the predominant religion in the country ever since. Mexico is considered one of the most Catholic countries in the world, and Mexico City is no exception. The city is home to numerous churches and cathedrals, including the Metropolitan Cathedral of Mexico City, which is the seat of the Roman Catholic Archdiocese of Mexico.