(OSV News) – The pews may be a bit more crowded at Mass this Easter — but on balance, regular church attendance in the U.S. continues to decline across the board, particularly among Catholics.

Gallup poll results released March 25 show that just three in 10 U.S. adults attend religious services regularly, 21% every week and 9% almost every week.

A reported 11% attend religious services about once a month, while 25% seldom and 31% never attend.

A man prays during the Chrism Mass at the Cathedral of Saint Peter in Scranton on March 26, 2024. (Photo/Mike Melisky)

The survey was based on cell and landline telephone interviews from a number of Gallup polls conducted in 2021-2023 among 32,445 adults, aged 18 and older, living in all 50 U.S. states and the District of Columbia.

Topping the list of the most observant adherents are members of The Church of Jesus Christ of Latter-day Saints (also known as the Mormon Church), with two-thirds saying they attend church weekly or almost weekly.

Forty-four percent of Protestant and nondenominational Christians attend services regularly, followed by 38% of Muslims and 33% of Catholics.

Gallup said that “majorities of Jewish, Orthodox, Buddhist and Hindu Americans say they seldom or never attend religious services.”

Twenty years ago, “an average of 42% of U.S. adults attended religious services every week or nearly every week,” said Gallup.

The polling firm also observed that “among religious groups, Catholics show one of the larger drops in attendance (over the past two decades), from 45% to 33%, while there are slightly smaller decreases among Orthodox (9 percentage points) and Hindu followers ( 8 points).”

Gallup said the general decline in religious service attendance among U.S. residents “is largely driven by the increase in the percentage of Americans with no religious affiliation — 9% in 2000-2003 versus 21% in 2021-2023 — almost all of whom do not attend services regularly.”

At the same time, “Muslim and Jewish Americans have shown slight increases in religious service attendance over the past two decades,” said Gallup, with the former rising from 34% to 38% and the latter from 15% to 22%.

Gallup predicts that “church attendance will likely continue to decline in the future, given younger Americans’ weaker attachments to religion.”

Among 18- to 29-year-olds, 35% say they have no religious preference or affiliation, with 32% identifying themselves as Protestant and just 19% as Catholic. Regardless of their affiliation or lack thereof, young adults are “much less likely” as a whole to attend religious services, with 22% — eight points below the national average — doing so.

Gallup said the trends it observed in this poll “are consistent with other Gallup indicators of religious beliefs and practices, including the importance of religion to Americans and formal membership in churches and other houses of worship.”