Final answer:
The country with the largest population of Muslims is Indonesia, a Southeast Asian country. Islam is a monotheistic religion, and its followers known as Muslims can be found across the globe. In the U.S., Muslims are the third-largest religious group.
Step-by-step explanation:
The country with the largest population of Muslims is (c) Indonesia. About one-fifth of the world's population identifies as Muslim, and while many are concentrated in the Middle East, Muslims span the globe. Indonesia is an island country in Southeast Asia that has the highest number of Muslims.
Islam is a monotheistic religion following the teachings of the prophet Muhammad. Islam's followers, called Muslims, can be found worldwide. However, the most significant population resides in Indonesia.
In the United States, Muslims make up the third-largest religious group, following Christians and Jewish people. It's predicted that by about 2040, the Muslim population in the U.S. will surpass the Jewish population.
Learn more about Largest Muslim population