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.
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.
Senior research staff answer questions from readers relating to all the areas covered by our seven projects, ranging from polling techniques and findings, to media, technology, religious, demographic and global attitudes trends.