Allover the world and ranging from small minorities in some places to 100% majorities in other places.
Islam religion is practiced today the same way it was practiced in time of prophet Muhammad (PBUH). Quran and Sunnah (prophet Muhammad sayings and practices) are valid anywhere any time until the Day of Resurrection. Refer to related question below on Islam teachings.
please, see the related question below which is " In which part of the world is Islamic religion mainly practiced today ?"
Islam
Islam is a religion. It has several sects and schools, but it is one religion.
Islam
Islam
Mindanao
Islam
Yes. Although Judaism is the predominant religion, many religions are practiced in Israel, including Islam.
Yes, it is.
Islam
ISLAM