Islam is the state religion of the United Arab Emirates.

More than 80% of the population of the United Arab Emirates are non-citizens. Nearly all of the country's citizens are Muslims; approximately 78% are Sunni, 22% are Shi'a, and a small Ahmadiyya Muslim Community. Foreigners are predominantly from South and Southeast Asia, although there are substantial numbers from the Middle East, Europe, Central Asia, the former Commonwealth of Independent States, and North America. According to a ministry report, which collected census data, 76 percent of the total population is Muslim, 9 percent is Christian, and 15 percent is "other". Unofficial figures estimate that at least 15 percent of the population is Hindu, 5 percent is Buddhist, and 5 percent belong to other religious groups, including Parsi, Bahá'í, and Sikh. These estimates differ from census figures because census figures do not count "temporary" visitors and workers, and Bahá'ís and Druze are counted as Muslim.

The Sheikh Zayed Mosque in Abu Dhabi is the largest mosque in the country, and the 8th largest mosque in the world.

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