Conrad Hackett

Between 2010 and 2018, the share of Chinese adults who identify with Christianity remained stable at about 2%.

Based on formal religious identity, China is the least religious country in the world - with just 10% of Chinese adults self-identifying with a religion.

The number of males has exceeded the number of females since the mid-1960s. But by 2050, the worldwide sex ratio is expected to even out.

China has the world’s largest population (1.426 billion), but India (1.417 billion) is expected to claim this title next year.

Muslim societies have gained a reputation in recent decades for failing to adequately educate women. But a new analysis of Pew Research Center data on educational attainment and religion suggests that economics, not religion, is the key factor limiting the education of Muslim women.

Substantial shares of Americans of nearly all religious groups – as well as those who have no religious affiliation – say they meditate at least once a week.

In the coming decades, the Muslim share of Europe's population is expected to grow – and could more than double. Read five facts about the Muslim population in Europe.

While the world’s population is projected to grow 32% in the coming decades, the number of Muslims is expected to increase by 70% – from 1.8 billion in 2015 to nearly 3 billion in 2060.

Though Christians make up nearly a third of Earth’s 7.3 billion people, the number of Christians in Europe is in decline.

While either Christians or Muslims make up the largest religious group in nine-in-ten nations around the globe, the religiously unaffiliated rank second in size in most of the Americas and Europe, as well as in many countries in sub-Saharan Africa.