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.
Sectarian democracy
Present day Iraq is a sectarian democracy where the Shiite controls the majority of the government. This is partly because Shiites in Iraq are the dominant religious group and partly because many Sunnis boycotted the elections. Despite the sectionality of the government it must be remembered that there are elected Sunnis and Kurds in power.