Americans who belong to a church, synagogue or mosque
Percent of U.S. adults, Gallup (in percent)
Key finding
Membership has been below a majority for four straight years.
- 1937: 73%
- 1999: 70%
- 2025: 45%
Source: Gallup via Gallup religious engagement coverage · 1937 and 1999 are Gallup historical readings; 2025 from 2025 surveys.
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Questions about this statistic
What does this statistic show?
Membership has been below a majority for four straight years. 1937: 73%. 1999: 70%. 2025: 45%.
Who published this data?
Gallup, 2025. Source: Gallup via Gallup religious engagement coverage (https://news.gallup.com/poll/702572/americans-religious-engagement-holds-lower-levels.aspx).
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More Attendance statistics
- Change in congregations' worship attendance over two years Lifeway Research, 2026
- Churchgoers' views on the amount of liturgical style in their church Lifeway Research, 2026
- Regular religious service attendance by age group Lifeway Research, 2026
- Share of all Protestant churchgoers who attend megachurches Lifeway Research, 2026
- Americans who attend church weekly Public Religion Research Institute, 2025
- Americans who say worshiping alone or with family can replace church attendance Lifeway Research, 2025
About this data
Leader Insights collects statistics about U.S. churches from published research by organizations such as Lifeway Research, Barna Group, Springtide, the American Bible Society and PRRI. Every number is checked against the wording of the original source before it is published, and each statistic links back to the study it came from. Figures are reproduced from the publishers named above; see the source for full methodology.