The U.S. government estimates the total population at 1.4 billion (July 2018 estimate).  According to the State Council Information Office’s (SCIO) report on religious policies and practices, published in April, there are more than 200 million religious believers in the country.  Many experts, however, believe official estimates understate the total number of religious adherents.  The U.S. government estimated in 2010 that Buddhists comprise 18.2 percent of the population, Christians 5.1 percent, Muslims 1.8 percent, and followers of folk religion 21.9 percent.  According to a February 2017 estimate by the international NGO Freedom House, there are more than 350 million religious believers in the country, including 185-250 million Chinese Buddhists, 60-80 million Protestants, 21-23 million Muslims, 7-20 million Falun Gong practitioners, 12 million Catholics, 6-8 million Tibetan Buddhists, and hundreds of millions who follow various folk traditions.  According to 2017 data from the Jewish Virtual Library, the country’s Jewish population is 2,700.

SCIO’s report found the number of Protestants to be 38 million.  Among these, there are 20 million Protestant Christians affiliated with the Three-Self Patriotic Movement (TSPM), the state-sanctioned umbrella organization for all officially recognized Protestant churches, according to information on TSPM’s website in March 2017.  According to a 2014 State Administration for Religious Affairs (SARA) statistic, more than 5.7 million Catholics worship in sites registered by the Chinese Catholic Patriotic Association (CCPA), the state-sanctioned organization for all officially recognized Catholic churches.  The SCIO’s report states there are six million Catholics, although nongovernment estimates suggest there are 10-12 million Catholics, approximately half of whom practice in non-CCPA affiliated churches.  Accurate estimates on the numbers of Catholics and Protestants as well as other faiths are difficult to calculate because many adherents practice exclusively at home or in churches that are not state sanctioned.

According to SCIO’s report, there are 10 ethnic minorities in which the majority practices Islam, and these 10 groups total more than 20 million persons.  Other sources indicate almost all of the Muslims are Sunni.  The two largest Muslim ethnic minorities are Hui and Uighur, with Hui Muslims concentrated primarily in the Ningxia Hui Autonomous Region and Qinghai, Gansu, and Yunnan Provinces.  SARA estimates the Muslim Hui population at 10.6 million.

While there is no reliable government breakdown of the Buddhist population by branch, the vast majority of Buddhists are adherents of Mahayana Buddhism, according to the Pew Research Center.

Prior to the government’s 1999 ban on Falun Gong, the government estimated there were 70 million adherents.  Falun Gong sources estimate that tens of millions continue to practice privately, and Freedom House estimates 7-20 million practitioners.

Some ethnic minorities retain traditional religions, such as Dongba among the Naxi people in Yunnan Province and Buluotuo among the Zhuang in Guangxi Zhuang Autonomous Region.  Media sources report Buddhism, particularly Tibetan Buddhism, is growing in popularity among the Han Chinese population.

Local and regional figures for the number of religious followers, even state-sanctioned legal religions, are unclear and purposely kept opaque by authorities.  Local governments do not release these statistics, and even official religious organizations do not have accurate numbers.  The Pew Research Center and other observers say many religious groups often are underreported.

The U.S. government estimates the total population at 25.4 million (July 2018 estimate).  In a 2002 report to the UN Human Rights Committee, the government reported there were 12,000 Protestants, 10,000 Buddhists, and 800 Roman Catholics.  The report noted Chondoism, a modern religious movement based on a 19th century Korean neo-Confucian movement, had approximately 15,000 practitioners.  Consulting shamans and engaging in shamanistic rituals is reportedly widespread but difficult to quantify.  The South Korea-based Database Center for North Korean Human Rights (NKDB) reported that five priests from the Russian Orthodox Church are in Pyongyang.  South Korean and other foreign religious groups estimate the number of religious practitioners in the country is considerably higher than reported by the authorities.  UN estimates place the Christian population at between 200,000 and 400,000.  The COI report stated, based on the government’s own figures, the proportion of religious adherents among the population dropped from close to 24 percent in 1950 to 0.016 percent in 2002.

The U.S. government estimates the total population at 7.2 million (July 2018 estimate).  According to SAR government statistics, there are more than one million followers of Buddhism and more than one million followers of Taoism; 480,000 Protestants; 379,000 Roman Catholics; 100,000 Hindus, and 12,000 Sikhs.  According to the World Jewish Congress, about 2,500 Jews live in Hong Kong.  According to a 2017 South China Morning Post article, there are approximately 25,000 members of The Church of Jesus Christ of Latter-day Saints residing in Hong Kong.  SAR government statistics estimate the SAR has approximately 300,000 Muslims.  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 Gong estimates there are approximately 500 Falun Gong practitioners in Hong Kong.

There are dozens of Protestant denominations, including Anglican, Baptist, Christian and Missionary Alliance, the Church of Christ in China, Lutheran, Methodist, Pentecostal, and Seventh-day Adventists.  The Catholic Diocese of Hong Kong recognizes the pope and maintains links to the Vatican.

The U.S. government estimates the population at 83 million (July 2018 estimate).  According to U.S. government estimates, Muslims constitute 99.4 percent of the population; 90-95 percent are Shia and 5-10 percent Sunni (mostly Turkmen, Arabs, Baluchis, and Kurds living in the northeast, southwest, southeast, and northwest, respectively).  Afghan refugees, economic migrants, and displaced persons also make up a significant Sunni population but accurate statistics on the breakdown of the Afghan refugee population between Sunni and Shia are unavailable.  There are no official statistics available on the number of Muslims who practice Sufism, although unofficial reports estimate several million.

According to U.S. government estimates, groups constituting the remaining less than 1 percent of the population include Baha’is, Christians, Jews, Sabean-Mandaeans, Zoroastrians, and Yarsanis.  The three largest non-Muslim minorities are Baha’is, Christians, and Yarsanis.

According to HRW data, Baha’is number at least 300,000.

According to World Christian Database statistics, there are approximately 547,000 Christians, although some estimates suggest there may be many more Christians than actually reported.  While the government Statistical Center of Iran reports there are 117,700 Christians, Elam Ministries, a Christian organization, estimates that there could be between 300,000 and one million Christians.  The majority of Christians are ethnic Armenians concentrated in Tehran and Isfahan.  Estimates by the Assyrian Church of the total Assyrian and Chaldean Christian population put their combined number at 7,000.  There are also Protestant denominations, including evangelical groups, but there is no authoritative data on their numbers.  Christian groups outside the country estimate the size of the Protestant community to be less than 10,000, although many Protestants and other converts to Christianity from Islam reportedly practice in secret.

There is no official count of Yarsanis, but the Human Rights Activist News Agency (HRANA) estimates there are up to two million.  Yarsanis are mainly located in Loristan and the Kurdish regions.

According to Zoroastrian groups and the government-run Statistical Center of Iran, the population includes approximately 25,000 Zoroastrians.

According to the Tehran Jewish Committee, the population includes approximately 9,000 Jews, while a British media report estimated their number at 18,000-20,000.

The population, according to one international NGO, includes 5,000-10,000 Sabean-Mandaeans.

The U.S. government estimates the total population at 606,000 (July 2018 estimate).  The latest SAR yearbook does not provide an estimate for Buddhists but states they are numerous and that individuals often practice a mixture of Buddhism, Confucianism, and Chinese folk religions.  Other sources say the majority of the population practices Buddhism or Chinese folk religions.  The SAR Government Information Bureau estimates there are approximately 30,000 Roman Catholics, of whom more than half are foreign domestic workers and other expatriates, and more than 8,000 Protestants.  Protestant denominations include the Anglican, Baptist, Lutheran, Methodist, Pentecostal, and Presbyterian Churches.  Evangelical Christian and independent local nondenominational churches, some of which are affiliated with Mainland churches, are also present.  Various reports estimate the Muslim population at 5,000 to 10,000.  Smaller religious groups include Baha’is, who estimate their membership at above 2,000, and a small group of Falun Gong practitioners, with some estimates at 20 to 50 persons.

The U.S. government estimates the total population at 142.2 million (July 2018 estimate).  A 2015-2016 poll by the Pew Research Center reported 71 percent of the population is Orthodox, while 10 percent identify as Muslim.  Religious groups constituting less than 5 percent of the population each include Buddhists, Protestants, Roman Catholics, Jews, members of the Church of Jesus Christ, Jehovah’s Witnesses, Hindus, Baha’is, members of the International Society of Krishna Consciousness (ISKCON), pagans, Tengrists, Scientologists, and Falun Gong practitioners.  The 2010 census estimates the number of Jews at 150,000; however, the RJC stated in October that the actual Jewish population is nearly one and a half million, most of whom live in Moscow and St. Petersburg.  Immigrants and migrant workers from Central Asia are mostly Muslim.  The majority of Muslims live in the Volga Ural region and the North Caucasus.  Moscow, St. Petersburg, and parts of Siberia also have sizable Muslim populations.

According to official data from China’s most recent census in November 2010, 2,716,400 Tibetans make up 90 percent of the TAR’s total population.  Han Chinese make up approximately 8 percent.  Other ethnicities comprise the remainder.  Some experts, however, believe the number of Han Chinese and other non-Tibetans living there is significantly underreported.  Outside the TAR, official census data show Tibetans constitute 24.4 percent of the total population in Qinghai Province, 2.1 percent in Sichuan Province, 1.8 percent in Gansu Province, and 0.3 percent in Yunnan Province, although the percentage of Tibetans is much higher within jurisdictions of these provinces designated as autonomous for Tibetans.

Most Tibetans practice Tibetan Buddhism, although a sizeable minority practices Bon, a pre-Buddhist indigenous religion; small minorities practice Islam, Catholicism, or Protestantism.  Some scholars estimate there are as many as 400,000 Bon followers across the Tibetan Plateau who follow the Dalai Lama, and some of whom consider themselves Tibetan Buddhist.  Scholars also estimate there are up to 5,000 Tibetan Muslims and 700 Tibetan Catholics in the TAR.  Other residents of traditionally Tibetan areas include Han Chinese, many of whom practice Buddhism (including Tibetan Buddhism), Taoism, Confucianism, traditional folk religions, or profess atheism; Hui Muslims; and non-Tibetan Catholics and Protestants.

A 2015 report on Xinjiang issued by the State Council Information Office (SCIO) states Uighur, Kazakh, Hui, Kyrgyz, and members of other predominantly Muslim ethnic minorities constitute approximately14.2 million residents in Xinjiang, or 61 percent of the total Xinjiang population.  Uighur Muslims live primarily in Xinjiang.