Why We Believe: A Global Story of Faith
What if childhood poverty, trauma, and family breakups have almost no universal link to adult religious belief?
A cross-national analysis of demographic variation in belief in God, gods, or spiritual forces in 22 countries
Belief in God, gods, or spiritual forces varies dramatically across the globe, ranging from as high as 100% in Egypt to as low as 20% in Japan.
Globally, belief in a higher power is more common among women, older adults, married or widowed individuals, immigrants, and those with less formal education.
While global patterns exist, the relationship between demographics like age or education and belief in a higher power is not consistent and varies significantly from one country to another.
A nation's collective beliefs influence its cultural values, social cohesion, and even its political priorities.
This research matters because it gives us one of the most detailed global pictures of religious belief ever assembled. Understanding who believes — and who doesn't — helps us grasp how belief varies with culture, age, gender, education, and immigration. For healthcare providers, counselors, and policymakers, knowing that belief varies so widely across populations can improve how they support people from different backgrounds. For societies experiencing rising secularization, the data reveals where belief is declining and where it remains strong — information that can inform conversations about community, identity, and belonging. The study also highlights a sobering reality: in some countries, people may overreport belief because non-belief carries serious social or legal consequences. That insight matters for anyone interpreting survey data about religion. As future waves of this study track changes over time, we'll learn even more about how belief is shifting around the world.
A nation's collective beliefs influence its cultural values, social cohesion, and even its political priorities.
What does belief in God look like around the world? Researchers asked over 200,000 people in 22 countries a simple question: Do you believe in one God, more than one god, an impersonal spiritual force, or none of these? What they found was a huge range.
Even among people who never attend religious services, seventy percent still report some form of belief.
In Egypt, nearly 100% of people said yes to some form of belief. In Japan, only about 20% did. Ten of the 22 countries had belief levels above 90%, with five of those in Africa. The study also looked at who tends to believe.
Across all countries combined, belief was highest among people 80 and older (98%), women (90%), married or widowed people (92%), homemakers and retired folks (92%), people who attend religious services frequently (98%), those with less formal education (91%), and immigrants (92%). But here's the thing — these patterns didn't hold everywhere. In Hong Kong and Indonesia, young adults were actually more likely to believe than older adults. In Japan, non-belief was steady across all age groups. And in several European countries, immigrants reported higher belief than people born there.
The study reminds us that belief is deeply personal but also varies widely with culture, age, gender, and where you happen to live. It also notes that in some countries, the cost of not believing — socially or even legally — is high, which may influence what people report.
The proportion of the population expressing belief in God, gods, or a spiritual force varied by 80 percentage points between the most believing country (Egypt at 100%) and the least believing country (Japan at 20%).
Across the 22 countries studied, women were more likely to report belief in a higher power than men, with 90% of women endorsing such a belief compared to 87% of men.
Even among people who never attend religious services, a substantial majority still report belief in God, gods, or a spiritual force, with this group's belief rate at 70%.
In Japan, Christians were over three times more likely to report belief in God, gods, or a spiritual force (77%) compared to their Buddhist counterparts (25%).
What if childhood poverty, trauma, and family breakups have almost no universal link to adult religious belief?
In Indonesia, 94% of people say religion guides their whole life, but in Japan, that number is only 7%.
People in Indonesia report feeling far more grateful than people in Japan, revealing vast cultural differences in this powerful emotion.
Attending religious services just once a week as a child nearly doubles your likelihood of praying or meditating daily as an adult.
While 95% of people in Indonesia believe in life after death, only 21% of people in Japan do.

In Tanzania, over 80% of people share their faith with others, while in Japan, that number is only 4%.