The U.S. government estimates the total population at 6.9 million (midyear 2019 estimate). According to reports by the International Organization for Migration, 12 percent of the population are migrants. Sunni Muslims represent between 90 and 95 percent of the population, Ibadi Muslims account for between 4.5 and 6 percent, and the remainder includes small communities of Christians, Hindus, Baha’is, Ahmadi Muslims, and Buddhists. Many members of the Amazigh ethnic minority are Ibadi Muslims. Nearly all non-Muslim residents in the country are foreigners.

Estimates of the number of Christians in the country vary. According to Open Doors USA’s 2020 World Watch List Country Profile (which covers 2019), there are 36,200 Christians. In 2015, Open Doors USA estimated 150 to 180 of these were Libyan nationals who converted from Islam.

Foreign Christian communities consist almost exclusively of sub-Saharan African migrants and Filipino foreign workers, with smaller numbers of Egyptian migrants and a small number of other foreign residents of European nationalities. According to Christian groups in Tripoli, most of the Egyptian Christians are Copts. Most sub-Saharan African and Filipino migrants are Catholic, and the Catholic diocese of Tripoli estimates its followers include 5,000 sub-Saharan and 1,500 Filipino individuals. Estimates on the numbers of other Christian groups vary. According to Open Doors USA, these include Anglicans, Greek and Russian Orthodox, and nondenominational Christians.

According to the World Holocaust Remembrance Center Yad Vashem, no Jews reside permanently in the country.