Why Mormons Leave

Understanding a generation of departures

Why are people leaving the Mormon Church?

Not because they were offended, and not because they wanted to sin. The largest survey of former believers found that people leave the LDS Church after studying its history and founding claims, and after concluding that what they were taught did not match what happened. This site gathers the reasons, the research, and the first-hand accounts in one place.

The shelf

Former Mormons call it the shelf: the place you set the things that do not fit, until it breaks. Tap a book.

The founding claimsHow the history was toldDoctrine and beliefHow people are treatedWhat church life felt likeWhat rarely causes itTaller books were named as a major factor by more people.

The short answer: why people leave the LDS Church

When 3,086 people who once believed the Church was "the only true and living church" were asked what changed their minds, four answers stood far above the rest: the Church's doctrine and theology (74% called it a major factor), studying Church history (70%), losing faith in Joseph Smith (70%), and losing faith in the Book of Mormon (65%).

The specific historical problems named most often were polygamy and polyandry, the Book of Abraham, and the priesthood and temple ban on Black members. Behind all of them sat one complaint that appeared more often than any other in the written comments: the feeling of having been taught a sanitized history and of learning the rest on their own.

Almost nobody left over a single issue. Respondents named, on average, fifteen major factors each. Former Mormons call this "the shelf": concerns get set aside one at a time until the shelf breaks. The explanations believing members most often reach for, that someone was offended, lazy, or wanted to sin, came dead last, each named as a major factor by about 4%.

Every figure above comes from a self-selected online survey run in 2011, not a random sample. Read the method and the limits, then see how later and larger studies compare on the research page.

Common questions

Why are people leaving the Mormon Church?

In the largest survey of former believers (3,086 people, 2011), the top reasons were the Church's doctrine and theology (74% called it a major factor), studying Church history (70%), losing faith in Joseph Smith (70%), and losing faith in the Book of Mormon (65%). The specific historical issues named most were polygamy and polyandry, the Book of Abraham, and the priesthood and temple ban on Black members. See the reasons.

Why are people leaving the LDS Church now more than before?

Three things changed after 2010: the Church's own history became searchable online and, from 2013, was confirmed by the Church's Gospel Topics essays; the Church's positions on LGBTQ members and women became the fastest-rising reasons among younger members; and trust in leaders fell after the 2015 exclusion policy and the 2023 SEC settlement over hidden investments. Pew's measure of adults raised LDS who still identify that way fell from at least 70% in 2007 to 54% in 2025. See the numbers and the timeline.

How many people are leaving the Mormon Church?

The Church reports 17.9 million members of record, but that counts everyone who has not formally resigned. Pew Research finds that 54% of American adults raised Latter-day Saint still identify as such, down from 64% in 2014. Independent estimates put worldwide attendance at a quarter to a third of the membership of record. See the numbers.

Do Mormons leave because they were offended, lazy, or wanted to sin?

Rarely. Of twenty-one reasons the 2011 survey asked about, being offended and wanting to sin came last, each named as a major factor by about 4%. The respondents included bishops, Relief Society presidents, and returned missionaries, and they named fifteen major factors each on average. See the myths.

What happens to people after they leave the LDS Church?

Most do not join another church. In the 2011 survey 53% now identified as agnostic, atheist, or humanist and 22% still called themselves Mormon in some sense; a 2023 survey found nearly 90% of former members had no religious affiliation. The heaviest costs fell on relationships with spouses, parents, and friends. See what happens after.

If this is your shelf

What now →

Our sister site, Mormon Faith Crisis, is organised by what is happening to you rather than by what is wrong with the Church.

The numbers

All the research →

Fewer people raised Latter-day Saint stay

Share of US adults raised LDS who still identify as LDS. Pew Research Center.

Share of American adults raised Latter-day Saint who still identify that way (Pew Research Center) 0% 25% 50% 75% 100% 2007 Religious Landscape Study: at least 70% of adults raised LDS still identified as LDS 70% 2007 2014 Religious Landscape Study: 64% 64% 2014 May 2025 American Trends Panel: 54% 54% 2025
Table view
MeasurementStill identify as LDS
2007at least 70%
201464%
202554%

What changed their minds

Top eight reasons and the bottom two. 2011 survey of 3,086 former believers.

Top eight reasons and the bottom two, 2011 survey 0% 25% 50% 75% 100% I ceased to believe in the Church's doctrine/theology: 74% rated it a major factor (2011 survey, n = 3,086) Doctrine and theology 74% I studied Church history and lost my belief: 70% rated it a major factor (2011 survey, n = 3,086) Studied Church history 70% I lost faith in Joseph Smith: 70% rated it a major factor (2011 survey, n = 3,086) Lost faith in Joseph Smith 70% I lost faith in the Book of Mormon: 65% rated it a major factor (2011 survey, n = 3,086) Lost faith in the Book of Mormon 65% I lost confidence in the general authorities: 50% rated it a major factor (2011 survey, n = 3,086) Lost confidence in general authorities 50% Church's stance on homosexuals / Prop 8: 48% rated it a major factor (2011 survey, n = 3,086) Church's stance on LGBTQ people 48% Church's stance on women: 47% rated it a major factor (2011 survey, n = 3,086) Church's stance on women 47% I did not feel spiritually edified at church: 47% rated it a major factor (2011 survey, n = 3,086) Not spiritually fed at church 47% I wanted to engage in behaviors viewed as sinful by the Church: 4% rated it a major factor (2011 survey, n = 3,086) Wanted to sin 4% I was offended by someone in the Church: 4% rated it a major factor (2011 survey, n = 3,086) Was offended by someone 4%

In their words

Whole interviews →

“I'm going to admit, as a bishop and as a leader, in all my callings, as a missionary, I was always taught the same thing: that people leave either because they were offended or because they couldn't hack it. So I hate that I used to think that about people, and I apologize for that. But I don't blame people for thinking that, because that's the standard narrative in the church: that there's no legitimate reason to step away.”

Adam Hughes Mormon Stories 1360, 2020. Hear it

“No, I left because the church claims aren't true. And I chose to drink beer as soon as I put two and two together and realized that all the claims of prophecy and leadership and all those other things were just more signs along the way: this is another manifestation that this isn't God's church, that it isn't being led by inspiration.”

Amy Malouf Mormon Stories 657, 2016. Hear it

“Polygamy was always on my shelf. I did not know Joseph Smith practiced polygamy. And so that was, like, earth-shattering for me... right around that time I found the Gospel Topics essays, and I was following footnotes and reading and finding stuff... I'd been a member my whole life at this point, like 27, 28 years. I'd gone to seminary, I'd gone to institute, I'd read my scriptures, I watched every conference. I'd done all the things. And there was this information that I'd never come across, and it was shocking to me, and I felt lied to.”

Devlyn Day Mormon Stories 2169, 2026. Hear it

“I had a really strong sense that I wanted my own story to be my own story, and my own choice to be my own choice, versus having the people around me start pointing at the other elements that might have darkened my path. Like I had no brain of my own, or agency of my own, or thoughts of my own.”

Alyssa Grenfell Mormon Stories 1851, 2024. Hear it

“As a woman in the church, to always look to authority, to be male, whether it's God or Jesus. And I know in Mormon theology we teach about a Heavenly Mother, but at least in my upbringing, it was sort of off limits to talk about. The narrative I was taught around that was that Heavenly Mother is so sacred that Heavenly Father doesn't want us to talk about her.”

Mindy Gledhill Mormon Stories 2178, 2026. Hear it

“If God asked you to kill me, would you do it? Who do you love more, me or God? If I left the church, would you still love me? If God said you had to give up one of your eight children, who would you give up? If I was gay, would you still love me? If the prophet told you to kill me, would you do it? If I don't feel the spirit, is there something wrong with me?”

Annie Marie Mormon Stories 2180, 2026. Hear it

Quotes are taken from machine-made transcripts of Mormon Stories interviews and may contain small transcription errors. Each links to the moment in the recording so you can hear it for yourself.

Watch the original presentation

John Dehlin's 2010 talk that started this project. The five myths it took on are still the five you will hear.

What has changed since

  1. October 2021 Marc Oslund is excommunicated
  2. February 21, 2023 The SEC fines the Church
  3. 2024 A faithful foundation confirms the ranking
  4. September 2024 Nemo the Mormon is excommunicated
  5. December 15, 2025 Pew: retention falls to 54%
  6. April 4, 2026 Membership of record passes 17.8 million

The whole timeline →