According to sociologists Ariela Keysar and Juhem Navarro-Riveras review of numerous global studies on atheism, there are 450 to 500 million positive atheists and agnostics worldwide (7% of the worlds population), with China having the most atheists in the world (200 million convinced atheists).

Which countries have the most atheist?

In 2017, the WIN-Gallup International Association (WIN/GIA) poll found China and Sweden as the top two countries with highest percentage of those who claim themselves atheist or irreligious.

What country is the least religious?

Countries/DistrictsRankCountry/DistrictNo, unimportant1Estonia78%2Sweden82%3Denmark80%4Czechia75%114 more rows