The U.S. government estimates the total population at 2.3 million (midyear 2020 estimate). According to 2011 Population and Housing Census reporting on the population 12 years of age and over, 79 percent of citizens are members of Christian groups, 15 percent espouse no religion, four percent are adherents of the Badimo traditional indigenous religious group, and all other religious groups together constitute less than one percent of the population.

Anglicans, Methodists, and members of the United Congregational Church of Southern Africa make up the majority of Christians. There are also Lutherans, Roman Catholics, members of The Church of Jesus Christ of Latter-day Saints (Church of Jesus Christ), Seventh-day Adventists, Jehovah’s Witnesses, Baptists, Mennonites, and members of the Dutch Reformed Church and other Christian denominations. According to the 2011 census, there are approximately 11,000 Muslims, many of whom are of South Asian origin. There are small numbers of Hindus, Baha’is, Buddhists, Sikhs, and Jews. Immigrants and foreign workers are more likely to be members of non-Christian religious groups than native-born citizens.

The U.S. government estimates the total population at 108.1 million (midyear 2020 estimate). The most recent census, conducted in 2007, estimated 44 percent of the population adheres to the EOTC, 34 percent are Sunni Muslim, and 19 percent belong to evangelical Christian and Pentecostal groups. Most observers believe the evangelical and Pentecostal proportion of the population has increased since the census was conducted. The EOTC predominates in the northern regions of Tigray and Amhara, while Islam is most prevalent in the Afar, Oromia, and Somali Regions. Established Protestant churches have the most adherents in Southern Nations Nationalities and Peoples (SNNP) and Gambella Regions and parts of Oromia Region.

Groups that together constitute less than five percent of the population include Eastern Rite and Roman Catholics, members of The Church of Jesus Christ of Latter-day Saints, Jehovah’s Witnesses, Jews, and practitioners of indigenous religions. The Rastafarian community numbers approximately 1,000, and its members primarily reside in Addis Ababa and the town of Shashemene in Oromia Region.