Most countries have Christian majorities – that is, more than half of all people in those places identify as Christian, according to a recent Pew Research Center report . However, the Christian share of the population has dropped in many countries. And some countries lost their Christian majority between 2010 and 2020, largely because millions of Christians around the world left the religion . How we did this ew Research Center conducted this analysis as part of our ongoing research on how the world’s religious composition is changing . This analysis is based on more than 2,700 sources of data, including national censuses, large-scale demographic surveys, general population surveys and population registers. The COVID-19 pandemic caused widespread delays in the collection of census and survey data, and some estimates for 2020 in this analysis are based on data that was not made public until 2024. Our estimates cover 201 countries and territorie...
