Where is Catholicism mostly practiced?

Answer 1

Latin America (Central and South America) has a very high percentage of Catholics. Italy, France, Spain, Portugal, Poland and the Philippines do also. The Roman Catholic Church is found everywhere in the world, hence one of the marks of the true church is catholicity, or as St. Vincent of Lerins wrote "hold fast that faith which has been believed everywhere, always, and by all." Catholics are united in doctrine, hierarchy and belief in every country of the world. In some countries where regimes rule that persecute the Church for religious or political reasons, the Church does not visibly exist although in almost every case there is an underground where faithful souls continue to practice their faith.

Answer 2

Catholicism is mostly practised in Europe (Spain France Italy etc) and Latin America and most colonies deriving from the above.

Its administrative centre is The Vatican City In Rome which is actually an Independent State even though its only about the size of 5-6 football pitches. Answer with the Top Ten Catholic Countries: Brazil with 134.8, Mexico with 86.3, US with 61 million, Phillipenes with 58 million, Italy with 55.5 million, France with 47.7 million, Spain with 37 million, Poland with 36.5 million, Colombia with 32 million, Argentina with 31.5 million and Germany with 28 million Catholics. The world's Catholic population is centered in the New World. And Vatican City has only 850 residents, yet is the only country that is 100 percent Catholic.