Islam in Indonesia Islam in Indonesia Islam is the most adhered to religion in Indonesia, with 87.2% of Indonesian population identifying themselves as Muslim in 2010 estimate. Indonesia has the largest Muslim population in the world, with approximately 225 million Muslims. In terms of denomination, absolute majority adheres to Sunni Islam, while there are around one million Shias (0.5%), who are concentrated around Jakarta, and about 400,000 Ahmadi Muslims (0.2%). In terms of Islamic schools of jurisprudence, based on demographic statistics, 99% of Indonesian Muslims mainly follow the Shafi'i school, although when asked, 56% does not adhere to any specific school. Trends of
Muslim world as state recognition) should qualify a given country. One commonly supported rule of thumb is a Muslim population of more than 50%. Jones (2005) defines a "large minority" as being between 30% and 50%, which described nine countries in 2000, namely Bosnia and Herzegovina, Eritrea, Ethiopia, Guinea-Bissau, Ivory Coast, Kazakhstan, Macedonia, Nigeria, and Tanzania. According to a 2010 study and released January 2011, Islam has 1.5 billion adherents, making up over 22% of the world population. According to the Pew Research Center in 2015 there were 50 Muslim-majority countries. Worldatlas.com (April 2017) identified 45 'Islamic countries'. Among the Islamic states