Iran Population By Religion 2024. The major part (89%) of the population in iran is shi'a muslim, 10% is sunni muslim, and the remaining 1% are christian, zoroastrian, baha’i. The religion survey went viral, collecting 50,000 samples and showing an undeniable secular shift across iran:

The major part (89%) of the population in iran is shi’a muslim, 10% is sunni muslim, and the remaining 1% are christian, zoroastrian, baha’i and jewish. The kurds and turkmen are predominantly sunni.