In 2023, **** percent of Americans were unaffiliated with any religion. A further **** percent of Americans were White evangelical Protestants, and an additional **** percent were White mainline Protestants. Religious trends in the United States Although the United States is still home to the largest number of Christians worldwide, the nation has started to reflect a more diverse religious landscape in recent years. Americans now report a wide range of religious beliefs and backgrounds, in addition to an increasing number of people who are choosing to identify with no religion at all. Studies suggest that many Americans have left their previous religion to instead identify as atheist, agnostic, or nothing in particular, with many reasoning that they stopped believing in the religion's teachings, that they didn't approve of negative teachings or treatment of LGBTQ+ people, or that their family was never that religious growing up. Christian controversies Over the last few years, controversies linked to Christian denominations have plagued the nation, including reports of child sexual abuse by the Catholic Church, the Church of Jesus Christ of Latter-day Saints, and the Southern Baptist Convention. Christian churches have also been accused of supporting discriminatory actions against LGBTQ+ people and people belonging to other religious groups. In addition, there have been increasing concerns about Christian nationalism, the political ideology that asserts that America was founded to be a Christian nation. Although the majority of Americans still think that declaring the United States a Christian nation would go against the U.S. Constitution, studies found that most Republicans would be in favor of this change.

The statistic shows the religious affiliation of the population in the United States in 2017, by age. In 2017, about 38 percent of respondents aged 18 to 29 years old were unaffiliated with any religious belief.

This study, designed and carried out by the "http://www.asarb.org/" Target="_blank">Association of Statisticians of American Religious Bodies (ASARB), compiled data on 372 religious bodies by county in the United States. Of these, the ASARB was able to gather data on congregations and adherents for 217 religious bodies and on congregations only for 155. Participating bodies included 354 Christian denominations, associations, or communions (including Latter-day Saints, Messianic Jews, and Unitarian/Universalist groups); counts of Jain, Shinto, Sikh, Tao, Zoroastrian, American Ethical Union, and National Spiritualist Association congregations, and counts of congregations and adherents from Baha'i, three Buddhist groupings, two Hindu groupings, and four Jewish groupings, and Muslims. The 372 groups reported a total of 356,642 congregations with 161,224,088 adherents, comprising 48.6 percent of the total U.S. population of 331,449,281. Membership totals were estimated for some religious groups.

In January 2024, the ARDA added 21 religious tradition (RELTRAD) variables to this dataset. These variables start at variable #9 (TOTCNG_2020). Categories were assigned based on pages 88-94 in the original "https://www.usreligioncensus.org/index.php/node/1638" Target="_blank">2020 U.S. Religion Census Report.

Visit the "https://www.thearda.com/us-religion/sources-for-religious-congregations-membership-data" Target="_blank">frequently asked questions page for more information about the ARDA's religious congregation and membership data sources.

This statistic shows the share of adults in the United States affiliated to a religious denomination in January 2017, by race/ethnicity. As of January 2017, 15 percent of Asian or Pacific Islanders in the United States identified themselves as Hindu.

The U.S. Religious Landscape Survey completed telephone interviews with a nationally representative sample of 35,556 adults living in continental United States households. The survey was conducted by Princeton Survey Research Associates International (PSRAI). This extensive survey by the Pew Forum on Religion & Public Life details the religious makeup, religious beliefs and practices as well as social and political attitudes of the American public.

Information on this page was adapted from the Pew Forum's methodology report for this survey.

The 2008 Conversion Recontact Survey, conducted by the Pew Research Center's Forum on Religion & Public Life, is a follow-up to the 2007 "U.S. Religious Landscape Survey." One of the most striking findings from the Landscape Survey was the large number of people who have left their childhood faith. The Landscape Survey found that more than one in four American adults (28%) have changed their religious affiliation from that in which they were raised. This number includes people who have changed from one major religious tradition to another, for instance, from Protestantism to Catholicism or from Judaism to no religion. If change within religious traditions is included (e.g., from one Protestant denominational family to another), the survey found that roughly 44% of Americans now profess a religious affiliation different from that in which they were raised.

The Conversion Recontact Survey is designed to offer a fuller picture of this churn within American religion, with a special focus on the reasons that people change religious affiliation. The Conversion Recontact Survey is based on follow-up interviews with Landscape Survey respondents, including those from the largest segments of the population that have changed religious affiliation as well as those who still belong to the religious faith in which they were raised. Interviews were conducted by telephone with a nationally representative sample of 2,867 adults living in continental United States telephone households. The survey was conducted by Princeton Survey Research Associates International (PSRAI). Interviews were conducted on landline telephones in English and Spanish by Princeton Data Source (PDS), LLC from Oct. 3 to Nov. 7, 2008. Statistical results are weighted to correct known demographic discrepancies. A full report on the survey's findings, "Faith in Flux: Changes in Religious Affiliation in the U.S.," is available on the Pew Forum's "http://www.pewforum.org/2009/04/27/faith-in-flux/" Target="_blank">website.

This dataset is the centerpiece of Pew Research Center's 2014 Religious Landscape Study, a nationally representative telephone survey conducted June 4-Sept. 30, 2014, among a sample of 35,071 U.S. adults. Approximately 60 percent of the interviews were conducted with respondents reached on cellphones (n=21,160) and 40 percent were completed on landlines (n=13,911). A minimum of 300 interviews were conducted in every state and the District of Columbia. Interviewing was conducted in English and Spanish. The survey is estimated to cover 97 percent of the non-institutionalized U.S. adult population; 3 percent of U.S. adults are not reachable by telephone or do not speak English or Spanish well enough to participate in the survey. No adjustments have been made to the data to attempt to account for the small amount of non-coverage.

The size of the national sample is unusually large for a religion survey. There are two main reasons for this. First, the large sample size makes it possible to estimate the religious composition of the U.S. with a high degree of precision. After taking into account the survey's design effect (based on the sample design and survey weights), the margin of error for the results based on the full sample is +/- 0.6 percentage points.

Second, the large sample size makes it possible to describe the characteristics of a wide variety of religious groups, including relatively small groups that cannot be analyzed using data from smaller surveys. With more than 35,000 respondents in total, the Religious Landscape Study includes interviews with roughly 350 in religious groups that account for just 1 percent of the U.S. population, and with 100 or more people in religious groups that are as small as three-tenths of 1 percent of the overall population. For instance, the study includes interviews with 245 Jehovah's Witnesses, a group that accounts for less than 1 percent of the U.S. population and is typically represented by only a few dozen respondents in smaller surveys.

In 2023, about 33 percent of Americans were Protestants, down from 69 percent in 1948. In that same year, about 22 percent of Americans were Catholic, while 22 percent said that they had no religion at all.

This study, designed and carried out by the Association of Statisticians of American Religious Bodies (ASARB), compiled data on the number of congregations and adherents for 236 religious groups in each county of the United States. Participants included 217 Christian denominations, associations, or communions (including Latter-day Saints, Messianic Jews, and Unitarian/Universalist groups); counts of Jain, Shinto, Sikh, Tao and National Spiritualist Association congregations, and counts of congregations and adherents from Baha'ís, three Buddhist groupings, four Hindu groupings, four Jewish groupings, Muslims and Zoroastrians. The 236 groups reported a total of 344,894 congregations with 150,686,156 adherents, comprising 48.8 percent of the total U.S. population of 308,745,538 in 2010. Visit the frequently asked questions page for more information about the ARDA's religious congregation and membership data sources.

This study, designed and completed by the Association of Statisticians of American Religious Bodies (ASARB), represents statistics for 149 religious bodies on the number of congregations within each county of the United States. Where available, also included are actual membership (as defined by the religious body) and total adherents figures. Participants included 149 Christian denominations, associations, or communions (including Latter-day Saints and Unitarian/Universalist groups); two specially defined groups of independent Christian churches; Jewish and Islamic totals; and counts of temples for six Eastern religions.

It is important to understand the methodology producing these data and its limitations. While these data contain membership data for many religious groups in the United States, including most of the larger groups, they do not include every group. It is recommended that users read the notes below. Users may also want to refer to a paper by Roger Finke and Christopher P. Scheitle that explains the "adjusted" adherence rates included in the file.

Visit the "/us-religion/sources-for-religious-congregations-membership-data" Target="_blank">frequently asked questions page for more information about the ARDA's religious congregation and membership data.

This statistic shows the distribution of political party affiliations among religious groups in the United States, in 2016, by faith tradition. In 2016, about 44 percent of Mormon in the United States affiliated themselves with the Republican Party.

This study assessed the effects of male inmate religiosity on post-release community adjustment and investigated the circumstances under which these effects were most likely to take place. The researcher carried out this study by adding Federal Bureau of Investigation criminal history information to an existing database (Clear et al.) that studied the relationship between an inmate's religiousness and his adjustment to the correctional setting. Four types of information were used in this study. The first three types were obtained by the original research team and included an inmate values and religiousness instrument, a pre-release questionnaire, and a three-month post-release follow-up phone survey. The fourth type of information, official criminal history reports, was later added to the original dataset by the principal investigator for this study. The prisoner values survey collected information on what the respondent would do if a friend sold drugs from the cell or if inmates of his race attacked others. Respondents were also asked if they thought God was revealed in the scriptures, if they shared their faith with others, and if they took active part in religious services. Information collected from the pre-release questionnaire included whether the respondent attended group therapy, religious groups with whom he would live, types of treatment programs he would participate in after prison, employment plans, how often he would go to church, whether he would be angry more in prison or in the free world, and whether he would be more afraid of being attacked in prison or in the free world. Each inmate also described his criminal history and indicated whether he thought he was able to do things as well as most others, whether he was satisfied with himself on the whole or felt that he was a failure, whether religion was talked about in the home, how often he attended religious services, whether he had friends who were religious while growing up, whether he had friends who were religious while in prison, and how often he participated in religious inmate counseling, religious services, in-prison religious seminars, and community service projects. The three-month post-release follow-up phone survey collected information on whether the respondent was involved with a church group, if the respondent was working for pay, if the respondent and his household received public assistance, if he attended religious services since his release, with whom the respondent was living, and types of treatment programs attended. Official post-release criminal records include information on the offenses the respondent was arrested and incarcerated for, prior arrests and incarcerations, rearrests, outcomes of offenses of rearrests, follow-up period to first rearrest, prison adjustment indicator, self-esteem indicator, time served, and measurements of the respondent's level of religious belief and personal identity. Demographic variables include respondent's faith, race, marital status, education, age at first arrest and incarceration, and age at incarceration for rearrest.

Graph and download economic data for Total Construction Spending: Religious in the United States (TLRELCONS) from Jan 2002 to May 2025 about religion, expenditures, construction, and USA.

The Alaska and Hawaii Supplement to the U.S. Religious Landscape Survey obtained telephone interviews with representative samples of 200 adults living in Alaska and 201 adults living in Hawaii. The survey was conducted by Princeton Survey Research International. Interviews were done in English by Princeton Data Source, LLC from March 13 to March 30, 2008. Statistical results are weighted to correct known demographic discrepancies. The margin of sampling error is +/- 7.5 percentage points for results based on Alaska respondents and +/- 8.5 percentage points for results based on Hawaii respondents.

Information on this page was adapted from the Pew Forum's methodology report for this survey.

From 2010 to 2023, Democrats were found much more likely than Republicans to identify with no religion in the United States. In 2023, ** percent of Democrats said that they identified with no religion compared to ** percent of Republicans.

According to a study conducted between July 2023 and March 2024, more women were Christians, Protestants, Catholics, and Latter-day Saints (Mormons) than men in the United States. In contrast, only 36 percent of women identified as Orthodox Christian, compared to 61 percent of men and one percent who identified in some other way.

From 2021 to 2023, Republicans were found much more likely than Democrats to be Protestants in the United States, with ** percent of surveyed Republicans identifying as Protestants compared to ** percent of Democrats. However, Democrats were found more likely than Republicans to identify with no religion, with ** percent of Democrats saying that they have no religious identity compared to ** percent of Republicans.

In his 2007 book, "https://www.amazon.com/exec/obidos/ASIN/0060859520/theassoofreli-20" Target="_blank">Religious Literacy: What Every American Needs to Know - And Doesn't, Boston University professor Stephen Prothero wrote that "Americans are both deeply religious and profoundly ignorant about religion." To support his contention, Prothero offered many compelling anecdotes and some isolated findings from public opinion polls. He also cited a few studies about the extent of biblical literacy among young people. But, as he discovered, there was no comprehensive, national survey assessing the general state of religious knowledge among U.S. adults.

To address this gap, the Pew Research Center's Forum on Religion & Public Life set out to gauge what Americans know about their own faiths and about other religions. The resulting survey covered a wide range of topics, including the beliefs and practices of major religious traditions as well as the role of religion in American history and public life. (Preface)

This dataset contains measures on religious belief and practice, Christian fundamentalist beliefs, religious context, and deviant behavior from students at four American universities. Two of these universities are public state schools; two are private and have religious affiliations. A total of 1,753 respondents were surveyed regarding their religious beliefs and practices, tattoos, piercings, and engagement in (or abstinence from) sexual intercourse, binge drinking, and marijuana use.

The annual Report to Congress on International Religious Freedom � the International Religious Freedom Report � describes the status of religious freedom in every country. The report covers government policies violating religious belief and practices of groups, religious denominations and individuals, and U.S. policies to promote religious freedom around the world. The U.S. Department of State submits the reports in accordance with the International Religious Freedom Act of 1998.