Key Takeaways
- In 2023, 70% of U.S. adults identified as Christian according to Pew Research Center's Religious Landscape Study update.
- Gallup poll in 2023 found 68% of Americans identify as Christian, down from 90% in 1990.
- PRRI's 2021 Census of American Religion reports 25% of U.S. population as religiously unaffiliated.
- In 2021, Christian affiliation dropped to 63% from 75% in 2011 per Pew.
- Unaffiliated rose from 16% in 2007 to 29% in 2021 (Pew).
- Gallup: Church membership fell from 70% in 2000 to 47% in 2021.
- Pew Evangelical Protestants: Largest group at 25% but declining 2014-2021.
- Mainline Protestants 14% per Pew 2021, including 5% Episcopal.
- Historically Black Protestants 7% (Pew 2021).
- 35% of U.S. adults attend religious services monthly (Gallup 2023).
- Pew 2021: 45% pray daily.
- Barna 2022: 25% read Bible weekly.
- Gallup 2022: 58% say religion important in life.
- Pew 2021: 80% believe in God, 33% absolutely certain.
- PRRI 2023: 45% believe Bible literal word of God.
The United States is becoming less religious, with Christian affiliation declining sharply as "nones" rise.
Beliefs and Attitudes
Beliefs and Attitudes Interpretation
Denominational Details
Denominational Details Interpretation
Religious Affiliation Percentages
Religious Affiliation Percentages Interpretation
Religious Practices
Religious Practices Interpretation
Trends and Changes
Trends and Changes Interpretation
Sources & References
- Reference 1PEWRESEARCHpewresearch.orgVisit source
- Reference 2NEWSnews.gallup.comVisit source
- Reference 3PRRIprri.orgVisit source
- Reference 4THEARDAthearda.comVisit source
- Reference 5BARNAbarna.comVisit source
- Reference 6LIFEWAYRESEARCHlifewayresearch.comVisit source
- Reference 7PEWFORUMpewforum.orgVisit source
- Reference 8RESEARCHresearch.lifeway.comVisit source
- Reference 9UMNEWSumnews.orgVisit source
- Reference 10AGag.orgVisit source
- Reference 11PCUSApcusa.orgVisit source
- Reference 12WELSwels.netVisit source
- Reference 13PCANETpcanet.orgVisit source






