Around 75% of the population consists of Ibadhi, a form of Islam distinct from the Sunni and Shia denominations, 24% Sunni Muslims and the Zaydi Shi'ite sect (Distinct from the Twelver Shi'ites) forming the remaining 1% of the Omani population. The Oman government does not keep statistics on religious affiliation, but most citizens are Muslims. Non-Muslim religious communities individually constitute less than 5% of the population and include various groups of Hindus, Jains, Buddhists, Zoroastrians, Sikhs, Baha'is, and Christians. Christian communities are centered in the major urban areas of Muscat, Sohar, and Salalah and include Roman Catholic, Eastern Orthodox, and various Protestant congregations, organizing along linguistic and ethnic lines. More than 50 different Christian groups, fellowships, and assemblies are active in the Muscat metropolitan area, formed by migrant workers from Southeast Asia, there are also small communities of ethnic Indian Hindus and Christians. Citizenship is not granted to immigrants in Oman and many are present on work visas for a specific duration
