Lane Kenworthy, The Good Society
January 2022

Religion is socially organized beliefs and practices that concern ultimate meaning and assume the existence of the supernatural.¹ It’s one of our most important, popular, and controversial institutions. Religion reduces antisocial behavior and crime by encouraging adherence to norms.² People who are religious tend to be happier.³ Many have drawn on religion to aid the oppressed and less fortunate.⁴ Religion also has been used to legitimate political, economic, and social inequality, and it’s been a major precipitant of war.⁵

Religion’s prominence owes to the fact that it fulfills three key human needs. First, it offers answers to some important questions that otherwise seem unanswerable: Does life have a purpose? Is there anything after death? In previous centuries people also looked to religion for answers to many questions that we now leave to science: Why is it raining today? Why did I get sick? Why did my child die? Second, religion helps to make life bearable for the poor and less fortunate. Religion often suggests that a person’s misery is God’s will, and it promises better fortune in the afterlife.⁶ Third, religion is an important source of community. Religious services and other activities provide a venue for people to meet and interact with others who share broadly similar beliefs.

There are thousands of religions around the world. The largest, with about 31% of the world’s population, is Christianity. The next largest, with about 24%, is Islam. Next is Hinduism with 15%, and then Buddhism with 7%.⁷ In the United States, Christianity is by far the dominant religion. About 72% of Americans say their religious preference is Christianity, 1.6% say Judaism, 0.8% Buddhism, 0.8% Islam, 0.3% Hinduism, 1.5% “other,” and 23% “none.”⁸

The US is one of the most religious — perhaps the most — of the world’s rich longstanding-democratic nations. Figure 1 shows, for instance, that a comparatively large share of Americans consider religion to be very important in their life.

Scholars have long predicted that religion would eventually be displaced by science. As we learn more and more about how the world works, there is less need to resort to belief in a divine being. And as science enables greater economic productivity, want and misery decrease, reducing the need for religion as a salve.

This secularization hypothesis has considerable empirical support. In nations that have experienced significant economic growth over the past century, particularly those that have created public insurance programs to ensure that some of the growth reaches the most vulnerable, religiosity has tended to decline.⁹ We also can see this if we compare across countries at a given point in time. Figure 2 shows that fewer people are very religious in nations that are richer. Figure 3 shows that the same is true across the US states. There are exceptions, but in both graphs the overall pattern is clear.

However, the United States is a noticeable exception to the pattern in figure 2; it’s one of the richest nations, yet it’s also relatively religious. And if we compare across individuals within the US, there is little association between income and religiosity, as figure 4 shows.¹⁰ Moreover, in some respects religion seems to be on the rise in America rather than in decline: megachurches are everywhere and the Christian right is an influential force in politics.

Is the US an exception to the secularization tendency, as some contend?¹¹ If it isn’t an exception, what exactly is it that’s declining — religiosity, religious organizations, religion’s influence? Will America and Americans be worse off if religion weakens?

Skip to:

• Are Americans becoming less religious?
• Are religious organizations declining?
• Is religion’s influence declining?
• Religion and community
• How will a less religious America fare?
• Summary

ARE AMERICANS BECOMING LESS RELIGIOUS?

Americans have long been exceptionally religious, and they remain so. For instance¹²:

• Nearly nine in ten Americans pray.
• Eight in ten are affiliated with a religious tradition or denomination.
• More than half say they know God exists.
• Approximately half say religion is very important in their life.
• Just shy of half believe life is meaningful only because God exists.
• Nearly half say they’ve tried to convince others to accept Jesus Christ.
• About four in ten attend religious services monthly or more often.
• More than three in ten say they read the Bible at least weekly.
• More Americans feel religion is very important in their life than is the case in any other affluent democratic country (figure 1 above).

Yet trends in a number of indicators suggest we are becoming less religious over time.¹³

Public opinion surveys regularly ask American adults what their religious preference or affiliation is. As figure 5 shows, until around 1990, 95% or more responded with some preference, as opposed to “none.” But in the 1990s the share with some affiliation began to decline, and by 2020 it had fallen below 80%.¹⁴

Membership in a church or synagogue or mosque has declined even more rapidly, as we see in figure 6.

Surveys frequently ask Americans how important religion is in their life. Figure 7 shows the share responding “very important.” The share dropped significantly between the mid-1960s and the mid-1970s. It then leveled off. In the 2000s another decline commenced, though surveys differ regarding how sharp this recent decline has been.

A similar question in the General Social Survey asks people the extent to which they consider themselves a religious person. Figure 8 shows a drop in the share responding very religious or moderately religious.

Figure 9 shows the share of Americans who report that they attend religious services — church, synagogue, mosque, temple — once a month or more. This was true of around 55% in the 1970s and 1980s. Since the late 1980s the share has been falling slowly but steadily.¹⁵ Other data sources suggest a decline that began in the 1960s.¹⁶

When the General Social Survey has asked Americans about their belief in God, more than half respond “I know God really exists and I have no doubts about it.” As figure 10 reveals, this number has slowly but steadily decreased since the early 1990s.

Figure 11 shows the share who say they pray at least sometimes. Until the early 2000s this was true of virtually all Americans. It’s still true of most, but the share has fallen to about 85%.

Each of the indicators in figures 5 through 11 tells a story of declining religiosity in the United States. The timing differs somewhat, and none of the changes in recent decades has been massive, but together they support a conclusion that Americans have been following the pattern of secularization visible in all other rich democratic nations.

Actually, these data understate the decline. Most of them don’t go back far enough in time to allow us to see the full extent of change. Also, a rise in immigration by Catholic Latinos since the mid-1960s has masked the extent of the decrease in religiosity among native-born Americans. The clearest way to see the degree to which religiosity has diminished is to focus on native-born Americans and to separate them by cohort.¹⁷ Figure 12 does this for religious service attendance. Each line in the graph shows the share in a cohort who report attendance at least once a month. The cohorts are identified by birth decade. In each cohort, church attendance tends to be stable throughout the life course. But it has decreased from one cohort to the next. Of those born between 1915 and 1924, about 60% attended once a month or more. Among those born between 1985 and 1994, only 35% do. The same pattern holds for intensity of religious affiliation and for belief in God (not shown here).¹⁸

David Voas and Mark Chaves, authors of an informative empirical study of trends in religiosity in the United States and other rich nations, conclude as follows¹⁹:

“Religiosity has been declining in the United States for decades, albeit slowly and from high levels…. Religious commitment is weakening from one generation to the next, and these generational differences are the main proximate cause of the aggregate decline. The weakening seems to have begun with cohorts born early in the 20th century. At least since then, strong religious affiliation, church attendance, and firm belief in God all have fallen from one birth cohort to the next. None of these declines is happening fast, and levels of religious involvement in the United States remain high by world standards. But the signs of both aggregate decline and generational differences are now unmistakable….

“Most research that compares American religion with religion elsewhere emphasizes the high levels of participation in the United States, and treats those high levels as strong evidence that the U.S. is a decisive counterexample to the secularization thesis. We have focused on trends, and we have maintained that both the now-clear fact of religious decline in the United States and the cohort-driven nature of that decline show that the U.S. should no longer be considered a counterexample. On the contrary, religious change in the United States is very similar to religious change elsewhere: there is long-term decline produced mainly by generational replacement. This process operates slowly, and it can be counteracted in the short term by short-lived revivals, but it is very difficult to reverse. Children are raised by parents who are less religious than their parents were, and the culture is gradually reshaped with the passing of each successive generation.”

Four additional developments suggest that the decline in religiosity in the US is likely to continue. First, a steadily rising share of (white) Americans raised with no religious affiliation — a group often referred to as “nones” — end up as “nones” themselves. Using data from the General Social Survey, Robert Putnam and David Campbell have calculated that half a century ago 70% to 80% of those raised as Catholics, mainline Protestants, or evangelical Protestants remained in that tradition, whereas only 30% of those raised as “nones” did so. But religious inheritance — following in your parents’ footsteps — then began to rise among “nones.” By the 1990s it had reached parity with Catholics and Protestants, and in the 2000s it passed them, with 80% inheritance among “nones” versus 60% to 70% among Protestants and Catholics.²⁰

Second, a growing number of nonreligious Americans also have a nonreligious spouse. In the 1970s, a majority of married American adults who didn’t have a religious affiliation had a spouse who did have a religious affiliation. Among millennials today, only a quarter do.²¹

Third, a growing number of Americans have one or more close nonreligious friends. Drawing on a repeated large-scale survey of American religion, Putnam and Campbell discovered that as of 2011 a majority of Americans have at least one close friend who is “not religious.” This was more true among the young than among the old, but for all age groups there was a sizable increase compared to just five years earlier.²²

Fourth, in the same 2011 survey, Putnam and Campbell found that religious Americans have a much “colder” view (on a “feeling thermometer”) of “atheists” than of “nonreligious” persons, presumably because an atheists hold beliefs that explicitly challenge their own whereas a nonreligious person might simply be uncertain. However, this difference in feelings about atheists versus the nonreligious is much less pronounced among younger Americans.²³

These developments may put a floor under the share of Americans who are nonreligious, ensuring that this share doesn’t decrease going forward. Of perhaps even greater import, they suggest that the stigma associated with nonreligiousness (perhaps even atheism) might be evaporating, which could accelerate the turn away from religion.

ARE RELIGIOUS ORGANIZATIONS DECLINING?

If religiosity among Americans has been declining, is the same true of religious organizations? Most of the older, established religious organizations in the United States have indeed been shrinking over the past half century. The Catholic Church, Methodists, Presbyterians, Episcopalians, Lutherans, the United Church of Christ, and the Christian Church (Disciples of Christ) have all lost membership.

But the story is more complicated. While the shrinking of the largest, most established religious organizations owes partly to the general decrease in religiosity among Americans, it’s also a product of a cycle process — a replacement of older organizations by newer ones.²⁴

According to the cycle hypothesis, religious organizations are similar to business firms. They have customers — their members — whose needs they must fulfill in order to keep their business. Many (though not all) new religious organizations begin by focusing on the needs of the poor and oppressed. The principal need religion fills for these sorts of people is to provide assurance that they will be better off in the afterlife. If the organization survives and begins to grow, however, the socioeconomic composition of its membership will gradually shift. As it becomes more established, the proportion of middle-class and affluent members it has will increase. These members have much less need than lower-class members to reject this world in favor of the next. Indeed, they will want to harmonize their religious beliefs with their own worldly success; they don’t want to be told that being wealthy in this life will put you at the end of the line in the afterlife. Over time, therefore, the religious organization will cease to emphasize the afterlife.

This shift will erode the organization’s ability to satisfy the religious needs of its lower-class members. Eventually, these members will defect to form a spinoff religious organization (a “sect”) that emphasizes the afterlife. Or in some cases they will join an entirely new religious organization.

The pattern of religious membership in the United States over the past half century is consistent with the cycle notion. Older American religious organizations have a larger share of high-income members than do newer ones.²⁵ And as figure 13 shows, older organizations have tended to decline in membership over the past half century, while some relatively new ones, such as the Southern Baptist Convention (a Baptist sect that split from the National Baptist Convention in 1845), the Mormons (founded in 1830), and the Assemblies of God (a Pentecostal denomination founded in 1914), have seen membership increases.²⁶

At the same time, it bears emphasizing that this cycle process has been operating in a context of overall religious decline. The membership losses of older religious organizations have exceeded the gains of newer ones.

IS RELIGION’S INFLUENCE DECLINING?

On issues such as prayer in school, premarital sex, out-of-wedlock childbearing, divorce, homosexuality, abortion, and suicide, more-religious and less-religious Americans tend to differ sharply in their views.²⁷ Have public opinion, public policy, and actual practice on these issues shifted with religion or against it in recent decades?

In 1962 and 1963, the US Supreme Court ruled that public schools can’t require prayer or reading of religious verses. Many religious authorities and ordinary Americans disagreed with these decisions, but the decisions haven’t been reversed or significantly amended. Public opinion on this issue has held steady. Around 40% of Americans approved of the Supreme Court’s ruling in the mid-1970s and roughly the same share do today.²⁸

Many religious Americans also want “creationism” — the notion that God created humans, and that we didn’t evolve from other species — to be taught in public schools. A Pew Research Center poll in 2006 found about 35% favor teaching evolution alone, while 60% favor teaching both evolution and creationism.²⁹ Unfortunately, there aren’t good over-time data, so we don’t know how, if at all, views on this issue have changed.

For many religious Americans, family and marriage are core institutions. And they are linked: a proper family, in this view, requires marriage. They also are tied to sex: sex is seen as appropriate for married adults. However, about three-fourths of Americans believe sex before marriage isn’t wrong. The share was only 24% at the end of the 1960s but then jumped to around 50% by the early 1970s. By the early 1980s it had risen to about 60%. It remained at that level in the 1980s and 1990s before rising further in the 2000s.³⁰

Religious organizations and leaders have tended to frown on births that occur outside marriage. However, the share of babies born to unmarried parents has exploded in the past half century. Data on Americans’ views don’t go back very far in time, but a solid majority now view out-of-wedlock births as not morally wrong, up from fewer than half at the end of the 1990s.³¹

Divorce, too, is discouraged by many religions and religious authorities. The divorce rate in the United States rose sharply in the 1960s and 1970s but then reversed course, although part of the post-1970s decline owes to the fact that fewer Americans are marrying. A majority of Americans think it shouldn’t be more difficult to obtain a divorce. Opinion on this issue hasn’t changed since the General Social Survey began asking this question in the mid-1970s.³²

According to the Bible, homosexuality is wrong. Until recently, many Americans agreed. But public opinion on this issue has shifted dramatically. A healthy majority now view homosexuality as not wrong. Even more objectionable to religious traditionalists is same-sex marriage. Here too, though, we see a surge in public opinion in the opposite direction. By 2014 a majority of Americans agreed that lesbians and gays should be allowed to marry. The Supreme Court’s 2015 Obergefell v. Hodges ruling extended that right to all 50 states.³³

Since the Supreme Court’s 1973 Roe v. Wade decision legalizing abortion, many religious organizations and leaders have advocated overturning the decision or in other ways restricting access to abortion. They’ve made little headway in shifting public opinion. The share of Americans who think abortion should be legal regardless of why the woman wants it has held constant at 35-45%. The actual incidence of abortion has, however, fallen steadily since 1980. It isn’t clear what has caused the fall in abortion, but likely contributors include reduced sexual activity among teens and women in their early twenties, increased use of contraceptives, greater use of contraceptives that are more effective, reduced access to abortion clinics, and state laws mandating counseling or waiting periods.³⁴

Many religious traditions consider suicide to be immoral. Yet since the late 1970s the share Americans who believe that at least in some circumstances people have a right to end their life has increased. Around 60% now hold this view. Should doctors be allowed to assist in ending a person’s life? Since the question was first asked in the mid-1990s, a majority has been in favor. Between 2000 and 2012 that majority shrank steadily, but it then began to rise again, returning by 2015 to its previous high of more than 70%.³⁵

On the whole, religion’s influence seems to have declined over the past half century.

To some, this will be surprising given the prominence of the “Religious Right” in recent decades. The Religious Right is a fusion of conservative Christianity (mainly Protestantism) and political conservatism. Most members believe their basic politics can be drawn from the Bible, and many see the goal of their political activity as restoring the United States as a “Christian nation.” The movement began in the late 1970s, coalescing in response to the Supreme Court decisions limiting school prayer and legalizing abortion and to the dramatic changes in American family life that began in the 1960s. Key organizations have included Jerry Falwell’s Moral Majority, Pat Robertson’s Freedom Council, and the Christian Coalition.

The Religious Right has won control of some local school boards, it is an important player in the Republican Party in some states, and at one point it held considerable sway within the House of Representatives via sympathetic Republicans. Yet on much of its agenda, it has lost ground. In part, this is because the Religious Right faces a problem common to sectarian groups: the source of its energy and growth — its quest to restore a Christian “golden age” in morality and politics — is also the source of its lack of wider appeal.³⁶ Indeed, despite enthusiasm, charismatic leadership, ample funding, and considerable media attention, evangelical Christians, from whom most of the Religious Right are drawn, haven’t gained adherents in recent decades. They’ve held steady at 25-30% of Americans since the early 1970s.³⁷ Moreover, many Americans disapprove of efforts by religious conservatives to influence government policy. In 1991, 52% agreed that “Religious leaders should not try to influence government decisions.” In 1998, the next time the question was asked, the share had increased to 60%. In 2008 it was 67%.³⁸

More generally, on issues such as the family and sexuality, religious traditionalists are pushing against powerful social, economic, and demographic shifts. In other affluent nations these changes have contributed to a large and sustained decline in religion’s influence on belief and behavior. Though the process began later here in the United States and has occurred more slowly, we do appear to be traveling down this same road.

RELIGION AND COMMUNITY

For many Americans, religion is a path to community. It isn’t just about belief in God, or in heaven and hell. It’s also about attending services regularly with people who share a similar worldview. It’s about listening, in the company of those people, to a sermon on how to be a better person, how to live a better life, how to deal with adversity. It’s about chatting with friends and acquaintances during an after-service coffee hour or brunch. And for quite a few it includes participating in other activities with a subset of those fellow congregants — a Bible study class, a church choir or softball team, a youth support group, a regular potluck dinner, a food drive for the poor, a cleanup of a local park. According to one estimate, “nearly half of all associational memberships in America are church related … and half of all volunteering occurs in a religious context.”³⁹ Humans long for community — for belonging, for sharing, for the “collective effervescence”⁴⁰ of communal ritual. Religion helps to supply it.

Have changes in American religion in recent decades altered the degree to which it enhances community? Let’s consider four hypotheses: (1) The fall in religious attendance reduces community. (2) The rise of megachurches diminishes community. (3) Religious intolerance weakens community. (4) Religious polarization decreases community by increasing political polarization.

Begin with the fall in attendance at religious services. As noted above, the decline has been slow, but it is real and significant. Approximately 55% of Americans born before 1945 attend once a month or more. Among baby boomers, those born between 1945 and 1964, about 45% do. Among Americans born since 1965, only 35% do. These numbers tend to remain constant throughout the life course. Given this significant reduction in regular attendance, it’s very unlikely that religion provides as much community as it used to.

A second significant change in religious participation in recent decades is the rise of megachurches — churches with more than 2,000 members. Does this shift mean small and medium-sized bodies where Americans recognize and interact with their fellow congregants are being replaced by big, impersonal productions where the pastor entertains and the churchgoers are passive spectators?

Possibly, but it isn’t clear that megachurches have in fact had this effect. For one thing, although they have risen rapidly and have become an important part of the religious landscape in America, their growth has been more modest than is sometimes thought. For most Protestant denominations, the share of total membership that is in the largest 1% of churches increased by only five percentage points between 1980 and the mid-2000s, from approximately 10% to 15%.⁴¹ And the median congregation size, around 75, didn’t change between the late 1990s and the late 2000s.⁴² Furthermore, the fact that you can’t possibly know all of your fellow congregants in a megachurch doesn’t preclude knowing some of them quite well, and many megachurches create mechanisms to facilitate that kind of interaction, such as small groups, volunteer activities, and committees.⁴³

Third, by encouraging adherents to believe in their particular version of the “one true faith,” religious traditions, denominations, and congregations can impede our sense of broader community. If I’m a Protestant and you’re a Catholic, I may get the impression from my church that you’re mistaken in your views about God and about moral behavior. The same is true if I’m a Jew and you’re a Muslim, if I’m an evangelical Protestant while you’re a mainline Protestant, or if I’m religious and you’re an atheist. To what degree does religion in America impede community across religions? And has it gotten worse in recent decades?

The available evidence suggests that things actually have gotten better rather than worse. Americans have become more, not less, accepting of religions other than their own. According to Mark Chaves,⁴⁴

“Increasing religious intermarriage probably is the best indicator of this increased tolerance and even appreciation, but it shows up in other ways as well. The percentage of Americans who say they would vote for an otherwise qualified Catholic, Jew, or atheist who was running for president has increased dramatically since the middle of the twentieth century, to the point where today almost all say they would vote for a Catholic or Jew, and about half say they would vote for an atheist…. Today, three-quarters of Americans say ‘yes’ when asked if they believe there is any religion other than their own that offers a true path to God; 70 percent say that religions other than their own can lead to eternal life; … only about 1 in 3 Americans believes that the Bible is the ‘actual word of God and is to be taken literally, word for word,’ and that number has been declining for decades….

“American Christians are much more suspicious of Muslims than of Jews … and they still are more wary of atheists than of people who believe in a God different than their own. Even more troubling, outbursts of anti-Muslim sentiment, vandalism, and violence have increased since 2001, and there are signs that the general public’s suspicion of Muslims also has increased. At the same time, however, we should not overlook the powerful dynamic that increases appreciation of other people’s religion over the long term: increased religious diversity within our families and friendship circles. It seems likely that it will take several decades, maybe longer, for this dynamic to make non-Muslim Americans as tolerant and appreciative of American Muslims as they already are of persons of other religions, and dramatic events here or abroad could slow or, in the extreme, undermine this dynamic. But I expect that, in the long run, we will see levels of tolerance and even appreciation of American Muslims that approach the levels we currently see for persons of other religions.”

What about tolerance on the part of the nonreligious? As religious participation and religion’s sway have diminished, have nonreligious Americans become more aggressive in trying to hasten that decline? Proponents of this view point to the Supreme Court’s trifecta of “anti-religion” rulings — its early 1960s prohibition of mandatory prayer in school, its 1973 legalization of abortion, and its 2015 legalization of same-sex marriage. They point to sharp declines in Americans’ confidence in religious leaders.⁴⁵ They posit an effort to rid the country of religious symbolism, from removal of “Ten Commandments” statues in government buildings to a “war on Christmas,” and they accuse Hollywood and the television industry of disparaging the traditional family.

There is some truth in this portrait. But the decline of religion’s influence in the United States surely stems less from a concerted effort by cultural and political elites than from heightened affluence, scientific advance, and improved access to information. To take just one example, the notion that homosexuality is “wrong” could no more survive as a norm in a world with plentiful information than could the notion that persons with dark skin or two X chromosomes are inferior.

A fourth way religion might impede community is via politics. Since the early 1990s, the correlation between religiosity and political views has increased in the United States. The most religious Americans are increasingly likely to be politically conservative and to identify with the Republican Party, while the least religious are increasingly likely to be politically liberal and to identify with the Democratic Party.⁴⁶ At the same time, the two political parties have polarized in their policy commitments and behavior.⁴⁷ Oppositional rhetoric and posturing by members of both parties have intensified. Has religion, then, weakened community by contributing to political polarization?

Yes, it has, but its role in this development probably has been much smaller than many people think. Though the correlation between religiosity and political views has increased, it actually is relatively weak. And the correlation between religiosity and party preference is even weaker.⁴⁸ Furthermore, party polarization began in the 1960s and 1970s, well before religion began to have an impact. And party polarization has a number of other causes, many of them arguably more significant than religion.⁴⁹ Finally, there is some indication that secular Americans are more likely than their religious counterparts to gravitate to the right and left extremes of American politics.⁵⁰

HOW WILL A LESS RELIGIOUS AMERICA FARE?

Religion, in the view of some, is a key source of beliefs, norms, and behaviors that have made the United States one of history’s most successful experiments.⁵¹ At the same time, some of the world’s least religious countries, such as Sweden and Denmark, are among its richest, healthiest, and happiest.⁵² Can America thrive with less religion?

Since Max Weber, some social scientists have viewed religion — specifically, Protestantism — as conducive to a vibrant economy.⁵³ Will religious decline dampen economic growth? America’s growth rate has been slower in recent decades than it was during religion’s post-second world war apex. But the 1950s and 1960s was a period of unusually rapid economic growth in all rich nations, due to catching up in the wake of the Great Depression and the war. Our slowdown is comparable to that of other countries. Furthermore, a number of rich nations in which religion is far weaker nevertheless have thriving economies.⁵⁴

Will religious decline cause antisocial behavior to increase? In the 1960s and 1970s, as religious belief and participation began to decrease, the crime rate in the US exploded. But it’s unlikely that the trend in religiosity played much of a causal role, if any. Although the decline in religiosity has continued, crime peaked in the early 1990s and has since plummeted. And other affluent nations that are much less religious have similar or lower rates of crime than the US.⁵⁵

Across individuals, religion is positively correlated with health. Will Americans’ health suffer as religion declines? That’s possible, but there is good cause for optimism. Life expectancy and most other measures of health have improved sharply over the past generation as religion has been weakening. One notable exception is obesity, but that has been rising in nearly all affluent countries, not just in the US. Across the rich nations there is no association between religiosity and life expectancy. Indeed, at the extremes the correlation runs in the other direction: Japan, one of the least religious countries, has the highest life expectancy, while the United States has the lowest.⁵⁶

Tolerance is another hallmark of a good society. Here too there is reason for optimism. By virtually every measure, Americans have become more tolerant during the era of religious decline.⁵⁷

In the United States, persons who are more religious tend to give more to charity and volunteer more of their time.⁵⁸ Will life be worse for America’s poor if religion continues to weaken? If nothing steps in to fill the void, that’s possible. But if we continue the course we’ve pursued over the past century, of slowly replacing private charity with public insurance, America’s poor might end up better off rather than worse. In a number of rich nations that are less religious than the US, income among the poor is higher and there is less material hardship.⁵⁹

Americans who are more religious tend to be happier than those who are less religious. Religion’s decline might, then, be partly to blame for why average happiness in the US hasn’t increased over the past four decades despite growing affluence.⁶⁰ On the other hand, a number of rich countries with low levels of religiosity score higher than we do on measures of happiness. As figure 14 shows, across these countries greater religiosity isn’t associated with greater life satisfaction.

Community is the desideratum most likely to suffer if religion continues to decline in America. As various observers have pointed out, religion is the single biggest contributor to social engagement and civic participation in the United States. It isn’t clear what might substitute for it.

This doesn’t, however, mean that Americans are doomed to be increasingly isolated and lonely. Figure 15 shows that there tends to be plenty of social support in countries in which fewer people are very religious.

SUMMARY

Religious belief and participation and religion’s influence are stronger in the United States than in other rich democratic nations. They also are declining. The causes of this decline are the same as elsewhere: the ability of science to answer complex questions has advanced, greater access to information and exposure to other types of people and cultures causes us to question traditional religious dictums (women shouldn’t be leaders, homosexuality is “unnatural”), and greater affluence reduces the need of those at the bottom to focus on the afterlife. This secularization process is unlikely to halt.

Where religion has stood in the way of justice, fairness, or opportunity, its decline is a source of progress. But religion has many beneficial effects as well, not least its contribution to community. In the United States, church (or temple, synagogue, mosque) attendance and participation in religious organizations’ other activities has long been a key source of community. To the extent religion’s decline continues, that will be a significant loss. Yet developments in the US over the past half century and in other affluent countries suggest that in other respects, including economic dynamism, safety, health, tolerance, economic security, and happiness, America and Americans can flourish as the nation becomes more secular.