Religion in South Korea (2015 census)[1][2] Irreligion in South Korea is common, with 56% percent of the population saying they are not affiliated with a religion, as of the 2015 national census.
Following the division of Korea in the mid-20th century, approximately 88% of South Koreans said they had no religious affiliation in 1964.
While religiousness in South Korea experienced a sharp rise in the 20th century, the majority of South Koreans (56%) had no religious affiliation as of 2015 national census.
[8][1] According to a 2012 Gallup International poll, 15% of South Koreans said they were "convinced atheists," an increase from 11% in 2005.
Experts also point to South Korea's demanding education and work systems as reasons why few young South Koreans participate in organized religion.