What Percentage of the World Is Christian?

By Staff WriterLast Updated Mar 25, 2020 2:46:20 PM ET

According to the Religion and Public Life Project at the Pew Research Center, there are 2.18 billion Christians worldwide, which is about 31.6 percent of the world population of 6.9 billion, as of 2010. About 50.1 percent of the total are Catholic, 36.7 percent Protestant and 11.9 percent Orthodox.