The latest survey data indicate believers share of Iran population, has dropped to 99.64%. As to Islam has not change, the previous survey recorded 99% of the population professed it and according to the latest data 99% follow it.
Related data:
Religión Iran
InIran decreases believers but Islam remained
Islam is the Iran's top religion, around 99% of the population. A very hight percentage of population, 99.64%, consider themselves religious.
Iran - Religions
| Date | Christianity | Islam | Hindu | Sikh | Judaism | Baha’i | Zoroastrian | Other | Non-Religious |
|---|---|---|---|---|---|---|---|---|---|
| 2010 | 0.16% | 99.00% | 0.01% | 0.41% | 0.07% | 0.36% | |||
| 2005 | 0.16% | 99.00% | 0.01% | 0.15% | 0.03% | 0.36% | 0.29% | ||
| 2000 | 0.16% | 98.50% | 0.02% | 0.16% | 0.66% | 0.22% | 0.30% | ||
| 1995 | 0.32% | 96.49% | 0.01% | 0.01% | 0.40% | 0.69% | 2.04% | 0.04% | |
| 1990 | 0.34% | 97.42% | 0.02% | 0.03% | 0.25% | 0.92% | 0.92% | 0.10% | |
| 1985 | 0.70% | 97.65% | 0.05% | 1.61% | 0% | ||||
| 1980 | 1.19% | 95.94% | 0.03% | 0.01% | 0.14% | 0.87% | 0.08% | 1.72% | 0.04% |
| 1975 | 1.01% | 98.60% | 0.30% | 0.04% | 0.05% | 0% | |||
| 1970 | 1.00% | 96.59% | 0.33% | 2.07% | 0% | ||||
| 1965 | 0.49% | 97.80% | 0.22% | 0.06% | 0.04% | 1.38% | 0% | ||
| 1960 | 0.54% | 96.34% | 0.30% | 0.93% | 1.89% | 0% | |||
| 1955 | 0.44% | 98.32% | 0.20% | 0.08% | 0.96% | 0% | |||
| 1950 | 0.61% | 94.95% | 0.16% | 1.06% | 0.03% | 3.18% | 0% | ||
| 1945 | 0.74% | 98.67% | 0.26% | 0.07% | 0.26% | 0% |