UNITED STATES, February 26, 2025 (Pew Research Center): After many years of steady decline, the share of U.S. adults who identify as Christians shows signs of leveling off – at least temporarily – at slightly above six-in-ten, according to a massive new survey of 36,908 Americans by Pew Research Center. The new study finds that 62% of U.S. adults identify as Christians. That is a 9-percentage-point decline since 2014, and a 16-point drop since 2007. But for the last five years, between 2019 and 2024, the Christian share of the adult population has been relatively stable, hovering between 60% and 64%. The Religious Landscape Study (RLS) is the largest single survey the Center conducts, aiming to provide authoritative figures on the size of U.S. religious groups because the U.S. Census Bureau does not collect that information. The new survey is the Center’s third religious landscape study over the past 17 years, with more than 35,000 randomly sampled respondents each time. That’s enough to paint a statistical portrait of religion not only nationally, but also in all 50 states and the District of Columbia, as well as in 34 of the largest metro areas.

Meanwhile, the share of Americans who identify with a religion other than Christianity has been trending upward, though it is still in single digits. Today, 1.7% of U.S. adults say they are Jewish when asked about their religion, while 1.2% of respondents in the new survey are Muslim, 1.1% are Buddhist, and 0.9% are Hindu. Religiously unaffiliated adults – those who identify as atheists, agnostics or as “nothing in particular” when asked about their religion – account for 29% of the population in the new RLS. The size of this group, which we sometimes call religious “nones,” has plateaued in recent years after a long period of sustained growth. Though down significantly since 2007, the percentage of Americans who say they pray daily has consistently held between 44% and 46% since 2021. In the new RLS, 44% say they pray at least once a day. Similarly, since 2020 the share of U.S. adults who say they attend religious services monthly has consistently hovered in the low 30% range. In the new RLS, 33% say they go to religious services at least once a month. But, despite these signs of recent stabilization and abiding spirituality, other indicators suggest we may see further declines in the American religious landscape in future years. Namely, younger Americans remain far less religious than older adults.

More at source.
https://www.pewresearch.org/religion/2025/02/26/decline-of-christianity-in-the-us-has-slowed-may-have-leveled-off/

See also:
https://www.pewresearch.org/religious-landscape-study