Falloff in U.S. Christianity has slowed, and may have leveled off: Research

After many years of steady decline, the share of Americans who identify as Christians shows signs of leveling off – at least temporarily – at slightly above six-in-ten, a substantial new Pew Research Center survey of 36,908 U.S. adults shows.
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 does not collect that information.
Pew said it conducted three landscape surveys 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 large metro areas," said Pew.
The first RLS, fielded in 2007, found that 78 percent of U.S. adults identified as Christians of one sort or another.
That number ticked steadily downward in Pew's smaller surveys each year and was pegged at 71 percent in the second RLS, conducted in 2014.
The latest RLS, fielded over seven months in 2023-24, finds that 62 percent of U.S. adults identify as Christians.
That is a decline of 9 percentage points since 2014 and a 16-point drop since 2007.
Yet for the last five years, between 2019 and 2024, the Christian share of the adult population has been relatively stable, hovering between 60 percent and 64 percent.
- Religious Landscape Study
The 62 percent figure in the new Religious Landscape Study is exactly in the middle of that recent range.
The largest subgroups of Christians in the United States are Protestants – now 40 percent of U.S. adults – and Catholics, now 19 percent.
People who identify with all other Christian groups (including the Greek and Russian Orthodox Churches, the Church of Jesus Christ of Latter-day Saints, Jehovah's Witnesses and many others) total about 3 percent of U.S. adults.
Both Protestant and Catholic numbers are down significantly since 2007, though the Protestant share of the population has remained fairly level since 2019 and the Catholic share has been stable since 2014, with only small fluctuations in our annual surveys.
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 percent of U.S. adults say they are Jewish when asked about their religion, while 1.2 percent of respondents in the new survey are Muslim, 1.1 percent are Buddhist, and 0.9 percent are Hindu.
Religiously unaffiliated adults – those who identify as atheists, agnostics, or as "nothing in particular" when asked about their religion – account for 29 percent of the population in the new RLS.
The size of the religiously unaffiliated population, which we sometimes call religious "nones," has plateaued in recent years after a long period of sustained growth.
Rates of prayer, and attendance at religious services are also relatively stable
Though down significantly since 2007, the share of Americans who say they pray daily has consistently held between 44 percent and 46 percent since 2021. In the new RLS, 44 percent say they pray at least once a day.
Similarly, since 2020, the percentage of U.S. adults who say they attend religious services monthly has hovered in the low 30s. In the new RLS, 33 percent say they go to religious services at least once a month.
- Spiritual Outlook
Moreover, the survey shows that a large majority of Americans have a spiritual or supernatural outlook on the world.
For example:
86 percent believe people have a soul or spirit in addition to their physical body.
83 percent believe in God or a universal spirit.
79 percent believe there is something spiritual beyond the natural world, even if we can't see it.
70 percent believe in an afterlife (heaven, hell or both).