Algeria
Islam is the predominant religion in Algeria, with its adherents, mostly Sunnis, accounting for 99% of the population according to a 2012 CIA World Factbook estimate, and 97.9% according to Pew Research in 2010. There are about 150,000 Ibadis in the M'zab Valley in the region of Ghardaia.
Maghreb
Recently, the Protestant community of Berber or Arab descent has experienced significant growth, and conversions to Christianity, especially to Evangelicalism, is common in Algeria, especially in the Kabylie, Morocco and Tunisia. A 2015 study estimates 380,000 Muslims converted to Christianity in Algeria. The number of the Moroccans who converted to Christianity (most of them secret worshipers) are estimated between 40,000-150,000. The International Religious Freedom Report for 2007 estimates thousands of Tunisian Muslims have converted to Christianity. A 2015 study estimate some 1,500 believers in Christ from a Muslim background living in Libya.