Religion, Spirituality, and the Rise of the "Nones" in American Society

A Portrait of the Religiously Unaffiliated

For most of the twentieth century, religious affiliation was a near-default feature of American identity. Belonging to a church, synagogue, or mosque was woven into civic life — it shaped where families lived, who they socialized with, and how communities organized around crisis and celebration alike. That default is now eroding at a pace that social scientists describe as historically unprecedented.

Pew Research Center data shows the religiously unaffiliated share of the U.S. adult population grew from roughly 16% in 2007 to approximately 28% by the early 2020s. To put that in demographic terms, roughly 90 million Americans now identify outside any formal religious tradition. The Nones have, in purely numerical terms, become one of the largest "religious" categories in the country.

The group defies easy characterization. Atheists — people who explicitly disbelieve in God — make up a modest slice of this population. Agnostics, who claim uncertainty, are another. But the largest subgroup describes itself as holding no particular religion while still harboring beliefs in a spiritual force, a higher power, or the value of prayer. The Nones are less a unified worldview than a demographic tent sheltering people who have, for varying reasons, stepped outside organized religious life.

What Is Driving the Shift?

No single cause explains the rise of religious disaffiliation, but researchers have identified several intersecting drivers.

Generational replacement is the most structurally significant. Each new cohort entering adulthood is less religiously affiliated than the one before it. Millennials are considerably less religious than Baby Boomers were at the same age, and Gen Z appears to be continuing this trajectory. Because people tend to retain the religious identity they form in early adulthood, the aggregate effect compounds over decades.

Institutional distrust has accelerated departures that might otherwise have been gradual drift. High-profile clergy abuse scandals across multiple denominations, perceived alignment of religious institutions with partisan politics, and a broader erosion of trust in large institutions have given wavering members concrete reasons to formally exit. Sociologist Robert Putnam's research has suggested that the politicization of American Christianity in particular drove away younger Americans who disagreed with conservative positions on social issues.

Changing social norms have reduced the cost of claiming no religion. In earlier decades, being publicly nonreligious carried social stigma and could damage professional and community standing. That stigma has diminished markedly in urban and suburban environments, making it easier for people to report an identity that might previously have gone unclaimed.

Spirituality Without Institutions

One of the more striking findings in the sociology of American religion is that disaffiliation has not produced a nation of committed materialists. Surveys consistently show that large proportions of the unaffiliated report a belief in God or a universal spirit, a sense that the natural world is sacred, or a regular practice of something resembling prayer or meditation.

This phenomenon — sometimes called "believing without belonging" — points to a decoupling of spiritual seeking from institutional participation. Americans are not, in large numbers, abandoning questions of meaning, transcendence, or moral community. They are pursuing those things through different channels: wellness culture, nature-based practices, loosely structured meditation communities, or what sociologists call "spiritual but not religious" eclecticism, drawing freely from multiple traditions without committing to any.

The growth of practices like mindfulness, astrology, and interest in Indigenous or Eastern spiritual traditions among younger Americans reflects this hunger for meaning that institutions are not capturing. Critics note that these practices can remain individualistic and lack the sustained communal accountability that traditional religious communities provide. Supporters argue they represent a more authentic, self-directed engagement with spiritual life.

What Fills the Social Space That Religion Once Occupied?

Religion in America has historically done more than transmit theology. Congregations have functioned as mutual aid networks, social calendars, grieving spaces, and engines of civic participation. As affiliation declines, scholars are asking what — if anything — performs those functions for the unaffiliated.

The answers are varied and incomplete. Some Nones find community through intense involvement in political movements, volunteer organizations, or fitness cultures. Others invest in close-knit friend groups that consciously mimic the rhythms of religious community — regular gatherings, shared rituals around food and seasons, collective support through hardship. A growing number of secular humanist organizations explicitly attempt to replicate congregational structure without theological content.

What research does suggest is that the social benefits historically linked to religious participation — lower rates of depression, stronger sense of belonging, longer life expectancy — are tied less to theological belief than to sustained community involvement. For those Nones who find robust community elsewhere, those benefits may transfer. For those whose disaffiliation coincides with social isolation, the picture is less encouraging.

The rise of the Nones does not signal the end of meaning-making in American life. It signals its diversification — a cultural renegotiation, still very much in progress, over where human beings find belonging, purpose, and a sense of the sacred.