For many people around the world, religion plays a prominent role in their everyday lives, while others embrace secular ideas. According to a Statista Consumer Insights survey, carried out between January and December 2025, many of the most religious countries in the world can be found in Africa and the Middle East. Among the countries included in the survey, Indonesia and Saudi Arabia scored highest with 99 percent of all adults in the surveyed age group professing to a religion.
The most secular country in the survey was China, with only 16 percent of the adult population saying that they followed a religion. The number is not surprising given the fact that religious faith was marginalized under Communism in the country. Other relatively secular places in Asia included Japan and South Korea.
In Europe, the Netherlands (44 percent follow a religion) is the country with the fewest people who declare themselves believers. Poland, the home of famous pope John Paul II, showed the most religious tendencies in Europe, with 80 percent of respondents calling themselves religious. In Italy, Austria, Finland, Spain, Switzerland and Germany, at least 60 percent of the population said they followed a religion.
Braziland Colombia wer the only countries surveyed on the American continent with at least 80 percent saying they followed a religion. Most other countries here did nevertheless score consistently high on religious faith with little difference between North and South.
