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Visualizing the World’s Most Popular Religions

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The World's Most Popular Religions

Visualizing the World’s Most Popular Religions

According to some estimates, there are over 4,000 religions, faiths groups, and denominations that exist around the world today. Researchers and academics generally categorize the world’s religions into five major groups: Christianity, Islam, Buddhism, Hinduism, and Judaism.

This graphic by Chit Chart visualizes the most popular religions around the world, using the latest available data from Index Mundi’s world demographics.

In addition to the five major religious groups, the graphic includes two more categories: one for a collective of Folk religions and another for people who are unaffiliated with a religion.

The Religions with the Most Followers

Although the number of people who follow a religion has decreased in recent decades, 82.8% of the global population still identifies with one of the world’s major religions.

Here’s a breakdown of the most popular religions, ranked by their following as a percentage of the world’s population:

RankReligion% of World’s Population
1Christian31.4%
2Muslim23.2%
3Unaffiliated16.4%
4Hindu15.0%
5Buddhist7.1%
6Folk Religions5.9%
7Jewish0.2%
8Other0.8%

Christianity has the largest following with approximately 31% of the global population. Muslims make up the second-largest religious group, accounting for 23.2% of the world’s population.

Roughly 16.4% of the global population is unaffiliated with a religion. This figure exceeds the percentage of people who identify with Hinduism (15%), Buddhism (7.1%), Folk Religions (5.9%), or Judaism (0.2%).

The World’s Religions from Oldest to Newest

Hinduism is considered the oldest religion in the world, originating in the Indus River Valley (modern-day Pakistan) circa 7000 BCE.

While Judaism came after Hinduism, it is thought to be the oldest of the three monotheistic Abrahamic faiths, making it older than Christianity and Islam.

It began circa 2000 BCE in the Southern Levant (modern-day Israel, Palestine, and Jordan). By contrast, Christianity was founded in the 1st century and began as a movement within Judaism.

Scholars typically date the creation of Islam to the 7th century, making it the youngest of the world’s major religions on this list. Islam was established in Mecca (modern-day Saudi-Arabia).

One religion that’s not included on this list is Sikhism. Founded in the late 15th century, it’s relatively new, especially compared to other religions like Hinduism or Judaism. Yet, despite being new, Sikhism has a large following—according to some estimates, there are over 25 million Sikhs worldwide.

What are Folk Religions?

A folk religion is defined as an ethnic or cultural practice that exists outside the theological doctrine of organized religions.

Lacking sacred texts, Folk religions are more concerned with spirituality than rituals or rites. Examples of Folk religions include Native American traditions, Chinese folk religions, and traditional African religions.

Since Folk religions are less institutionalized, they are especially challenging to measure and often excluded from surveys. With that said, an estimated 5.9% of the global population (approximately 430 million people) practice a Folk religion.

The Fastest-Growing Religions

While Islam is the newest of the big five religions, it’s currently the world’s fastest-growing one too. For context, here’s the estimated percent change among the seven religion categories, between 2015 and 2060:

RankReligious GroupEst. % change in population size (2015-2060)
1Muslims70%
2Christians34%
3Hindus27%
4Jews15%
5Folk religions5%
6Unaffiliated3%
7Buddhists-7%

Islam’s rapid growth means it may surpass Christianity as the world’s largest religion within the next half-century. What’s causing this growth?

According to Pew Research Center, the main reason is simply demographics—on average, Muslim women have 2.9 children, which the average of all non-Muslims is 2.2.

Muslims are also concentrated in Africa and the Middle East, the two regions predicted to have the highest population increases in the next few decades.

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This article was published as a part of Visual Capitalist's Creator Program, which features data-driven visuals from some of our favorite Creators around the world.

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Money

Visualizing the Wealth of Americans Under 40 (1989-2023)

The wealth of American Millennials hit historic highs after the COVID-19 pandemic.

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This line chart shows the growth of wealth for Americans under 40 over the last 40 decades.

Visualizing the Wealth of Americans Under 40 (1989-2023)

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

Millennials have been often referred to as a “broke generation.” Whether in conversations or on the news, it is common to hear how those born in the 1980s or 1990s are struggling in today’s economy, particularly when it comes to entering the housing market or saving for retirement.

However, data shows that the wealth of Americans under 40 years old has hit historic highs after the COVID-19 pandemic, suggesting that millennials have accumulated more wealth by their 40s than previous generations.

To illustrate this, the graphic above shows the average wealth per household, adjusted for inflation, for Americans under 40 years old from Q4 1989 to Q4 2023 (in December 2023 dollars). The data is sourced from the Federal Reserve and accessed via the Center for American Progress.

Post-Pandemic Recovery

Data indicates that younger Americans have reaped the most benefits from the strong economic recovery after the pandemic, enjoying low unemployment rates and rapid wage growth.

The average wealth of U.S. households under 40 was $259,000 in the fourth quarter (Q4) of 2023, compared to $164,000 in Q4 1989 and $182,000 in Q4 2000.

QuarterAverage Wealth for Those Under 40 (USD)
Q4 1990152K
Q4 1995146K
Q4 2000182K
Q4 2005184K
Q4 2010100K
Q4 2015148K
Q4 2020231K
Q4 2023259K

Looking specifically at millennial households, inflation-adjusted wealth has more than doubled during the same period.

The increase in younger Americans’ wealth is not concentrated in a single area. Average housing wealth—house values minus mortgage debt—rose by $22,000 from 2019 to 2023. Younger Americans also saw gains in liquid assets, such as bank deposits and money market mutual funds, business ownership, and financial assets, mainly stocks and mutual funds.

Additionally, non-housing debt, such as credit card and student loan debt, fell for this age group after the pandemic.

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