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7. Iran 74.8 Million
In Iran round 90–95% of Iranians associate themselves with the Shi’a 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, 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.
