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.
Algeria–Iran relations
Algeria is one of the few Arab and Sunni nations that has been friendly towards Iran despite Algeria is a majority Sunni while Iran is a majority Shia Islam respectively. However, although enjoying cordial relationship, sometimes relationship between two countries had been strained, with the Algerian Civil War at 1990s, and the current situation of the Arab world towards Iran. Nonetheless, Algeria remains close and friendly tie with Iran due to its neutrality at the expense of Saudi Arabia.