-Christianity is the most widely practiced religion in the world, with some 2.4 billion followers -- one-third of the global population. The Catholic church alone has 1.09 billion followers – writes CBS, adding that the United States has the largest Christian population in the world, but not the highest rate of Christians per capita.
They made this list with the various census results, the Pew Research Center and other sources.
- Croatia's population is 90.1 percent Christian. More than 86 percent of the population is Catholic – CBS states. The first on the list is Vatican City, followed by East Timor, Romania, Greece and Romania.