Iran Religion Percentage 2024. Islam is the majority religion in iran and twelver shia islam is the official state religion, to which about 90% of the population adhere. A poll of over 50,000 iranians conducted by a dutch research group, the group for analyzing and measuring attitudes in iran (gamaan), found the country in religious flux.
Pew research center has been tracking restrictions on religion around the world for more than a decade, and china’s government has consistently ranked among the most restrictive, alongside egypt, iran and other countries. Iran 2024 population is estimated at 91,567,738 people at mid year.