International rankings of Iran Religion Rankings

| Name_ | Rank_ | Out_of | Source_ | Year_ |
|---|---|---|---|---|
| Muslim population | 7 | 67 | Demographics of Islam | 2005 |
| Muslims as % of population | 6 | 168 | International Religious Freedom Report | 2004 |
| Shia`s as % of total Muslim population | 1 | 67 | Demographics of Islam | 2005 |
| Number of Shia Muslims by Country | 1 | 67 | Demographics of Islam | 2005 |
| Sunni`s as % of total Muslim population | 67 | 67 | Demographics of Islam | 2005 |
| Bahá`í population by country | 2 | 247 | Bahá`í Faith by country | 2004 |
| Protestants population | 98 | 167 | Protestantism by country | 2004 |
| Population of Roman Catholics | 149 | 170 | Roman Catholicism by country | 2004 |
| Zoroastrian population by country | 2 | World | Zoroastrianism | 2005 |
| Jewish population of countries | 24 | 89 | World Jewish Congress | 1998 |