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.
Baghdad
Baghdad's population was estimated at 7.22 million in 2015. The city historically had a predominantly Sunni population, but by the early 21st century around 82% of the city's population were Iraqi Shia. At the beginning of the 21st century, some 1.5 million people migrated to Baghdad, most of them Shiites and a few Sunnis.Sunni muslims make up 30-35% of Iraq's population and they still majority in west and north Iraq.