The U.S. government estimates the total population at 36.6 million (midyear 2020 estimate). There are no reliable statistics available concerning the percentages of Sunni and Shia Muslims in the country; the government’s Central Statistics Office does not track disaggregated population data. According to Pew Forum data from 2009, Shia make up approximately 10-15 percent of the population.

According to religious community leaders, the Shia population, approximately 90 percent of whom are ethnic Hazaras, is predominantly Jaafari, but it also includes Ismailis. Other religious groups, mainly Hindus, Sikhs, Baha’is, and Christians, constitute less than 0.3 percent of the population. According to Sikh leaders, there are fewer than 400 members of the Sikh community remaining in the country, compared with an estimated 600 at the start of the year and 1,300 in 2017. Most of the community is located in Kabul, with smaller groups in Nangarhar and Ghazni Provinces. Hindu community leaders estimate there are fewer than 50 remaining Afghan Hindus, all male and primarily businessmen with families in other countries.

The Ahmadi Muslim community estimates it has 450 adherents nationwide, down from 600 in 2017. Reliable estimates of the Baha’i and Christian communities are not available. There are small numbers of practitioners of other religions, including at least one Jew.

Hazaras live predominantly in the central and western provinces as well as in Kabul; Ismaili Muslims live mainly in Kabul and in the central and northern provinces. Followers of the Baha’i faith live predominantly in Kabul, with a small community in Kandahar. Ahmadi Muslims largely live in Kabul.

The U.S. Government estimates the total population at 3.1 million (midyear 2020 estimate). According to the most recent census conducted in 2011, Sunni Muslims constitute nearly 57 percent of the population, Roman Catholics 10 percent, members of the Autocephalous Orthodox Church of Albania nearly 7 percent, and members of the Bektashi Order (a form of Shia Sufism) 2 percent. Other groups include Protestant denominations, Baha’is, Jehovah’s Witnesses, The Church of Jesus Christ of Latter-day Saints, and a small Jewish community. Nearly 20 percent of respondents declined to answer an optional census question about religious affiliation.