As of October 2009, there are about 1.57 billion
Muslims of all ages living in the world today (in more
than 200 countries of the world). This represents 23% of an
estimated 2009 world population of 6.8 billion people. (per study
done by Pew forum). Refer to related link below.
60% of these Muslims live in Asia, mainly Pakistan, India,
Indonesia, and Bangladesh.
20% of these Muslims live in North Africa and the Middle East, from
Morocco to Iran.
This shows a person how many Muslims are non-Arab and that Islam
allows people of any background to convert and accept the religion.
The country currently with the most Muslims is Indonesia.
Refer to related questions below for more information.