Islam is the state religion, although all are guaranteed religious freedom. Most Jordanians (about 95%) are Sunni Muslims. Of the racial minorities, the Turkomans and Circassians are Sunni Muslims, but the Druzes are a heterodox Muslim sect. Christians constitute about 4% of the population and live mainly in 'Amman or the Jordan Valley; most are Greek Orthodox or Roman Catholic. Other officially recognized denominations include Melkite, Armenian Orthodox, Maronite, Assyrian, Anglican, Lutheran, Seventh-Day Adventist, United Pentecostal, Presbyterian, Baptist, Free Evangelical, Nazarene, and Assembly of God. The Baha'is are mainly of Persian stock. A tiny community of Samaritans maintains the faith of its ancestors, a heterodox form of the ancient Jewish religion. There are numerous missionary groups within the country.