Around 1600 million Muslims.
They are around 2000 millions Muslims worldwide (around 25% of world population). Around 85% of total Muslims are Sunni Muslims. Around 15% of total Muslims are Shiites Muslims.
Around 2000 million Muslims.
Around 200 million Muslims.
They are around 1600 million Muslims, as of October 2009 per Pew Forum study.
By 2020 the religion will still be popular even though many people say religion will fail by then. Predicting one third f the world will be Christian this includes Muslims, Humanists, Atheist, Jews and Buddhists.
I'm not sure if this is right or not but supposedly there are around 814,000 Muslims in Italy, but i find that hard to believe, because there are many Muslims in Italy. . :]
Around 1600 million Muslims are there in the world (duniya in Arabic and in Urdu).
Around 20% of Muslims are Shiites. Also many of Shiites hide their beliefs for dangers for a Shia living among Sunni Muslims containing extremist Takfiri Muslims.
Approximately one of every five Muslims are Shia Muslims. so there are around 350,000 Shia Muslims in the world.
Around 2000 million Muslims.
In all the US there are around 2.5 million Muslims (less than 0.8% of total population). You can guess accordingly how many Muslims in the State of Philadelphia.