4. Religiously unaffiliated population change
The religiously unaffiliated population is the world’s third-largest religious category and grew the second-fastest between 2010 and 2020.
Americans’ views differ by party and age on whether public school teachers should be allowed to lead students in Christian prayers.
Explore the 2023-24 Religious Landscape Study’s main report, interactive database, methodology, and more. Pew Research Center.