https://www.cia.gov/the-world-factbook/countries/iraq
11/8/2022 · Religions. Muslim (official) 95-98% (Shia 61-64%, Sunni 29-34%), Christian 1% (includes Catholic, Orthodox, Protestant, Assyrian Church of the East), other 1-4% (2015 est.) note: the last census in Iraq was in 1997; while there has been voluntary relocation of many Christian families to northern Iraq, the overall Christian population has decreased at least 50% …