By far the predominant religion in Libya is Islam with 97% of the population associating with the faith. The vast majority of Libyan Muslims adhere to Sunni Islam, which provides both a spiritual guide for individuals and a keystone for government policy, but a minority (between 5 and 10%) adhere to Ibadism (a branch of Kharijism), above all in the Jebel Nafusa and the town of Zuwara, west of Tripoli. A Libyan form of Sufism is also common in parts of the country.
Before the 1930s, the Senussi Movement was the primary Islamic movement in Libya. This was a religious revival adapted to desert life. Its zawaaya (lodges) were found in Tripolitania and Fezzan, but Senussi influence was strongest in Cyrenaica. Rescuing the region from unrest and anarchy, the Senussi movement gave the Cyrenaican tribal people a religious attachment and feelings of unity and purpose.
This Islamic movement, which was eventually destroyed by both Italian invasion and later the Gaddafi government, was very conservative and somewhat different from the Islam that exists in Libya today. Gaddafi asserted that he was a devout Muslim, and his government was taking a role in supporting Islamic institutions and in worldwide proselytising on behalf of Islam.
Other than the majority of Sunni Muslims, there are also small foreign communities of Christians. Coptic Orthodox Christianity, which is the Christian Church of Egypt, is the largest and most historical Christian denomination in Libya. There are over 60,000 Egyptian Copts in Libya, as they comprise over 1% of the population. There are an estimated 40,000 Roman Catholics in Libya who are served by two Bishops, one in Tripoli (serving the Italian community) and one in Benghazi (serving the Maltese community). There is also a small Anglican community, made up mostly of African immigrant workers in Tripoli; it is part of the Anglican Diocese of Egypt.
Libya was until recent times the home of one of the
