Religion in Iran

According to the CIA World Factbook, around 90–95% of Iranians associate themselves with the Shia branch of Islam, the official state religion, and about 5–10% with the Sunni and Sufi branches of Islam. The remaining 0.6% associate themselves with non-Islamic religious minorities, including Bahá'ís, Mandeans, Yarsanis, Zoroastrians, Jews, and Christians. The latter three minority religions are officially recognized and protected, and have reserved seats in the Iran parliament. Zoroastrianism was once the majority religion, though today Zoroastrians number only in the tens of thousands. Iran is home to the second largest Jewish community in the Muslim World and the Middle East.Christianity, the second largest non-Muslim minority religion, has the largest annual growth rate of all religions. Bahá'í Faith, Iran's largest non-Muslim religious minority, is not officially recognized, and has been persecuted during its existence in Iran.

Religion in Iran (census 2011)

The Iranian government does not officially recognise the existence of non-religious Iranians. This leaves the true representation of the religious split in Iran unknown as all non-religious, spiritual, atheist, agnostic and converts away from Islam are likely to be included within the government statistic of the 99% Muslim majority.Sunnism was the predominant form of Islam before the devastating Mongol conquest, but subsequently Shi'ism became eventually utterly dominant in all of Iran and modern-day Azerbaijan with the advent of the Safavids.

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