Read how Pew Research Center revised our estimates to reflect methodological advances, incorporate newly available data, and allow comparison across measures in this report.
Adults in Indonesia, Bangladesh and the Philippines are the most likely to say it is important to have a leader who stands up for people with their religious beliefs.
Based on formal religious identity, China is the least religious country in the world – with just 10% of Chinese adults self-identifying with a religion.
The Census Bureau has collected data on Americans’ income, race, ethnicity, housing and other things, but it has never directly asked about their religion.
We ran a survey experiment on religious tolerance in Australia to examine whether respondents’ answers capture a general distaste for religion rather than intolerance for particular religious groups.