The U.S. government estimates the total population at 1.5 million (midyear 2021).  The NGO World Population Review estimates the population is 1.7 million.  According to the national government, there are approximately 712,000 citizens, constituting less than half of the total population.  According to 2020 national government estimates, Muslims make up approximately 74 percent of the total population.  The Ministry of Information Affairs website states 99.8 percent of citizens are Muslims, while the remainder of citizens are Christians, Jews, Hindus, and Baha’is.  The ministry website states 70.2 percent of the total (citizen and noncitizen) population is Muslim and 29.8 percent adhere to other religions and beliefs, such as Christians (10.2 percent), Jews (0.21 percent), Hindus, Baha’is, Buddhists, and Sikhs.  According to Jewish community members, there are between 36-40 Jewish citizens (six families) in the country.

The government does not publish statistics regarding the breakdown between the Shia and Sunni Muslim populations.  Most estimates from NGOs and the Shia community state Shia Muslims represent a majority (55 to 65 percent) of the citizen population.

Most foreign residents are migrant workers from South Asia, Southeast Asia, Africa, and other Arab countries.  According to national government 2020 census data, approximately 401,500 foreign residents are Muslim; 387,800 are Hindu, Buddhist, Baha’i, Sikh, or Christian (primarily Roman Catholic, Protestant, Syrian Orthodox, and Mar Thoma Syrian from South India).  According to Boston University’s 2020 World Religions Database, the population includes approximately 1.4 million Muslims, 205,000 Christians, and 109,000 Hindus.