Most Iranians are Muslims; 89% belong to the Shi'a branch of Islam, the official state religion, and about 9% belong to the [[Sunni]] branch, which predominates in neighboring Muslim countries. Non-Muslim minorities include [[Zoroastrian]]s, [[Jew]]s, Baha'is, and [[Christian]]s. | Most Iranians are Muslims; 89% belong to the Shi'a branch of Islam, the official state religion, and about 9% belong to the [[Sunni]] branch, which predominates in neighboring Muslim countries. Non-Muslim minorities include [[Zoroastrian]]s, [[Jew]]s, Baha'is, and [[Christian]]s. |