The U.S. government estimates the total population at 7.2 million (midyear 2020 estimate). According to SAR government statistics, there are more than one million followers of Taoism and approximately one million followers of Buddhism; 500,000 Protestants; 403,000 Catholics; 300,000 Muslims; 100,000 Hindus; and 12,000 Sikhs. The Catholic Diocese of Hong Kong, which recognizes the Pope and maintains links to the Vatican, reported approximately 620,000 followers (403,000 local residents and 217,000 residents with other nationalities). The Church of Jesus Christ of Latter-day Saints reported it has approximately 25,100 members. According to the World Jewish Congress, there are approximately 2,500 Jews, primarily expatriates. Small communities of Baha’is and Zoroastrians also reside in the SAR. Confucianism is widespread, and in some cases, elements of Confucianism are practiced in conjunction with other belief systems. The Falun Dafa Association estimates there are approximately 500 Falun Gong practitioners.

There are numerous Protestant denominations, including Baptist, Christian and Missionary Alliance, Lutheran, Methodist, Anglican, the Church of Christ in China, Seventh-day Adventist, and Pentecostal.