Analysis of information sources in references of the Wikipedia article "이슬람교" in Korean language version.
Of the total Muslim population, 10–13% are Shia Muslims and 87–90% are Sunni Muslims.
The Pew Forum's estimate of the Shia population (10–13%) is in keeping with previous estimates, which generally have been in the range of 10–15%. Some previous estimates, however, have placed the number of Shias at nearly 20% of the world's Muslim population.
