Demographics of Iraq
97% of Iraqis follow Islam: 61% Shia and 34% Sunni. 1% of these describe themselves as "Just a Muslim". According to the CIA Factbook, Shias make up 60% of population, while Sunnis 35%. Christianity accounts for 5%, and the rest practice Mandaeism, Yazidism and other religions.
Demographics of the Arab League
In the northern regions of Iraq (15-20%) and Syria (10%) live a group called the Kurds, an Indo-European ethnic group who speak Kurdish, a language closely related to Persian and using Persian alphabet (In Turkey, Kurds use Latin alphabet). The majority of Kurds are Sunni Muslim, others are Alevi Muslim, with Christian and Yarsan minorities. The nationalist aspiration for self-rule or for a state of Kurdistan has created conflict between Kurdish minorities and their governments in Iraq, Iran, Syria and Turkey