The country with the largest Catholic percentage of the population is Vatican City, at 100%.
Italy, Ireland, France, Spain, Portugal, Poland, & Germany.
Countries with predominantly Catholic populations include Brazil, Mexico, and the Philippines. In these nations, Roman Catholicism plays a significant role in cultural and social life. Additionally, Italy and Spain also have large Catholic populations, reflecting their historical ties to the Catholic Church.
St. Nicholas is celebrated all over the world but especially in European countries with large populations of either Catholic or Orthodox parishioners.
England, Germany and Scotland.
The population that is mostly Catholic is found primarily in Latin America, where countries like Brazil, Mexico, and Argentina have significant Catholic majorities. Additionally, parts of Europe, especially Southern and Eastern Europe, such as Italy, Spain, and Poland, also have large Catholic populations. In the Philippines, a predominantly Catholic nation in Asia, Catholicism is the major religion as well.
barbados and trinidad
Brazil has a large amount of Japanese immigrants.
The four Western European countries that have large immigrant population are France, Germany, Italy, and the United Kingdom
Both countries have large populations with diverse ethnicities and cultural backgrounds. They also both have significant urbanization trends, with a majority of their populations living in urban areas. Additionally, both countries have aging populations due to improvements in healthcare and life expectancy.
The Celtic countries that have a strong Catholic tradition certainly include Ireland and Brittany, the southern Hebrides of Scotland. The presence in Cornwall, the Isle of Man and Wales less so. Because of Irish immigration many parts of the UK have Catholic populations today however.
france,germany,italy, and the united kingdon
China has the largest populations of Buddhists. Other countries with a large percentage of that faith are Thailand, Burma, Sri Lanka, and South Korea.