The U.S. government estimates the total population at 65.1 million (October 2018 estimate). Census figures from 2011, the most recent, indicate 59.3 percent of the population in England and Wales is Christian, comprising the Church of England (Anglican), the Church of Scotland (Presbyterian), other Protestant churches, the Roman Catholic Church, and other Christian groups. Of the remaining population, 4.8 percent identified as Muslim; 1.5 percent Hindu; 0.8 percent Sikh; 0.5 percent Jewish; and 0.4 Buddhist. Approximately 25 percent of the population reported no religious affiliation, and 7 percent chose not to answer. The Jehovah’s Witnesses estimates there are 137,000 members in the country, and the Baha’i community estimates it numbers more than 7,000 members.
According to the 2018 British Social Attitudes survey, an annual survey conducted by the independent National Center for Social Research, 53 percent of those surveyed described themselves as having no religion, 15 percent as Anglican, 10 percent as Catholic, and 6 percent as belonging to non-Christian religious groups.
The Muslim community in England and Wales is predominantly of South Asian origin, but it also includes individuals from the Arabian Peninsula, the Levant, Africa, and Southeast Asia, as well as a growing number of converts of European descent. Hindus, Sikhs, Jews, and Buddhists are concentrated in London and other large urban areas, primarily in England.
Census figures for Scotland in 2011 indicate 54 percent of the population is Christian, comprising the Church of Scotland (32 percent), Roman Catholic Church (16 percent), and other Christian groups (6 percent). The Muslim community constitutes 1.4 percent of the population. Other religious groups, which together make up less than 1 percent of the population, include Hindus, Sikhs, Jews, and Buddhists. Persons not belonging to any religious group make up 36.7 percent of the population, and the remainder did not provide information on religious affiliation.
Census figures from Northern Ireland in 2011 indicate 41.5 percent of the population is Protestant – consisting of the Presbyterian Church of Ireland (19 percent), Church of Ireland (14 percent), Methodist Church in Ireland (3 percent), and other Protestant groups (6 percent) – and 41 percent Roman Catholic. Less than 1 percent of the population belongs to non-Christian religious groups, and approximately 10 percent professes no religion; 7 percent did not indicate a religious affiliation.
Census figures from Bermuda in 2010 cite 22 religious groups in the population of 71,000; 78 percent identifies as Christian, including 16 percent Anglican, 15 percent Roman Catholic, 9 percent African Methodist Episcopal, and 7 percent Seventh-day Adventist. Approximately 2 percent identifies with other religious groups, including approximately 600 Muslims, 200 Rastafarians, and 120 Jews. Approximately 20 percent did not identify with or state a religious affiliation.