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.
Iraqi Turkmen
The Iraqi Turkmen are predominately Muslims. The Sunni Turkmen form the majority (about 60%-70%) but there is also a significant number of Turkmen practicing the Shia branch of Islam (about 30% to 40%). Nonetheless, the Turkmen are mainly secular, having internalized the secularist interpretation of state–religion affairs practiced in the Republic of Turkey since its foundation in 1923. Moreover, the fact that the Turkmen mainly live in urban areas, where they deal with trade and commerce, and their tendency to acquire higher education, the power of religious and tribal factors inherent in Iraq’s political culture does not significantly affect the Turkmen.