Overview
- Gallup reports 49% of U.S. adults call religion important in daily life, a 17-point drop since 2015 and one of the steepest decade-long declines it has recorded.
- Only 14 of more than 160 countries have seen similar drops over a decade, with larger losses in places such as Greece, Italy and Poland, Gallup finds.
- Denominational reports and church consultants estimate roughly 15,000 U.S. churches will close this year, far outnumbering openings.
- Pew data show religious unaffiliation at a record 29% and Christian identification at 62%, down from 78% in 2007, with PRRI noting Gen Z women as key drivers of disaffiliation.
- Despite declining personal religiosity, faith remains politically potent, reflected in Trump’s strong 2024 support among white evangelicals and Vice President J.D. Vance’s public faith emphasis.
- Gallup’s survey was conducted by telephone June 14–July 16, 2025, with about 1,000 respondents and a margin of error of plus or minus 4.4 points.