Pew survey sheds light on characteristics of U.S. Catholic population

Washington, D.C. Newsroom, Dec 15, 2025 / 16:06 pm (CNA).

About half of American adults who were raised Catholic and stayed in the Church said the faith continues to “fulfill their spiritual needs,” according to a Pew Research Center report.

The Dec. 15 report, “Why Do Some Americans Leave Their Religion While Others Stay?”, examines the religious switching of U.S. adults. It looks into the reasons why people stay or leave their childhood faith, addressing the social and demographic factors associated with the changes.

The report includes findings from a survey of 8,937 U.S. adults who are part of the Center’s American Trends Panel (ATP). The survey was conducted May 5–11 and its overall margin of error is 1.4 percentage points. It also uses information from the center’s 2023-24 Religious Landscape Study (RLS), a survey of 36,908 U.S. adults conducted from July 17, 2023, to March 4, 2024, with an overall margin of error of 0.8 percentage points. 

While the report revealed many U.S. adults (35%) have left the religion they grew up in, the majority of Americans (56%) still identify with their childhood religion. Another 9% weren’t raised in a religion and still don’t have one today. 

Of the U.S. adults who still identify with their childhood religion, 64% credited their belief in the religion’s teachings as an “extremely important” or “very important” reason as to why they stayed. Another 61% said their religion fulfills their spiritual needs, and 56% said their religion gives life meaning.

Other attributions included a sense of community (44%), familiarity (39%), traditions (39%), and the religion’s teachings on social and political issues (32%).

The research found 46% of Americans who have left their childhood religion said the extremely or very important reason behind their decision was that they stopped believing in the religion’s teachings; 38% said it wasn’t important in their life; and 38% said they gradually drifted away. 

Why Americans choose to remain Catholic or leave the faith 

Among the Catholics who have kept their religious identities, 54% said a key reason they are Catholic today is because it fulfills their spiritual needs. About 53% credited belief in the religion’s teachings, and 47% said it’s because Catholicism gives their life meaning.

The survey found that adults who were raised in “highly religious” households are more likely to have remained in their childhood religion (82%) than those who grew up in households with “medium-high” (77%), “medium-low” (62%), or “low levels” of religiousness (47%).

The majority of lifelong Catholics reported they had a “mostly positive experience” with religion when growing up (73%).

According to Pew’s RLS, an estimated 19% of U.S. adults are Catholic including 17% who were raised Catholic and are Catholic today, and 2% who are Catholic today after they were raised another way.

Of the adults surveyed in the RLS who left the Catholic faith, 14% are now Protestant, compared with 1% of Americans raised Protestant who are now Catholic.

The RLS found that 13% of U.S. adults are former Catholics, including 6% who were raised Catholic but now identify in another way and 7% who are religiously unaffiliated. Of the religious “nones,” 81% said an extremely or very important reason they left is because they believe they can be moral without religion.

Americans cited other reasons including they question a lot of religion’s teachings (67%), they don’t need a religion to be spiritual (57%), they don’t like religious organizations (53%), and they distrust religious leaders (52%).

Social and demographic reasons for switching 

The RLS found that 73% of Republicans and independents who lean Republican still identify with the religion in which they were raised, compared with the 56% of Democrats and Democratic-leaning adults.

Democrats who were raised in a religion are also more likely to be religious “nones” today than Republicans who were raised in a religion.

The RLS also found that age affected patterns. Among adults ages 65 and older who were raised in a religion, 74% still identify with that religion. Of the adults under 30, 55% still identify with their childhood religion.

Americans who switch religions tend to do so while they are still young. It found that 85% who have switched did so by the age of 30, including 46% who switched as children or teenagers.

Source: https://www.catholicnewsagency.com/news/268485/pew-survey-sheds-light-on-characteristics-of-us-catholic-population