It is difficult to assess what percentage of Iran's population adhere to any given religion. The state religion is Shia Islam and state that around 90% follow this. However, there are sizeable followers of Sunni, Christian, Jewish and Bahaii faiths as well as atheists/communists. The latter 2 are not officially recognised.
Two percent of Iranians are Arabs, roughly a population of 2.2 million people. In the whole world, there are 440 million Arabs, making Iranian Arabs roughly 0.5% of the world Arab population.
Iran is majority Persian, Turkic, and Kurdish.
99.4 % (73.8 millions of Muslims) as of Census 2006 (ref PEW Oct 2009)
99.4% of Iranians are muslims.
6609464 muslims
The question is ambiguous. Is it aboutthe percentage of the population of Lebanon that is Jewish, orthe percentage of Jews in the world who are living in Lebanon.
Iran
It is estimated that Afghanistan's population is 99.7% Muslim.
Iran Muslim population amounts to ~ 74 million Muslims (99.4 % of total population); per Pew Forum study as of October 2009.
list of Muslim countries with percentage of Muslim population higher than 80% (81% to 99.7%)AfghanistanTunisiaIranWestern SaharaAzerbaijanMauritaniaYemenMoroccoIraqNigerSomaliaMaldivesComorosJordanTurkeyAlgeriaPalestineSaudi ArabiaDjiboutiLibyaPakistanUzbekistanSenegalKuwaitGambiaEgyptTurkmenistanMaliSyriaKosovoBangladeshIndonesiaOmanKyrgyzstanGuineaTajikistanBahrain
Iran, Azerbaijan, Bahrain, and Iraq.
Iran and Iraq consist of Muslims belonging to the Shiite sect of Islam. In Iran, about 90% of the population is Shia Muslim, and in Iraq, about 95% of the population is Shia.
The most common religion for an Iranian girl is Muslim. The Muslim religion in Iran is the most common for all Iranians. Ninety percent of the total population in Iran is Muslim.
The Muslim population is ~ 1600 million Muslim (23% of total world population. Refer to link below.
none ... they just receive propaganda
Roughly 90% of Iran's population is Shiite Muslim and 9% is Sunni Muslim. However, before Islam came into Iran, Iran was Zoroastrian for over one thousand years. As a result, much of the practices and theologies of Iranians is combined with Zoroastrianism.
More than 90 percent of Middle East's population is Muslim.