The U.S. government estimates the total population at 65.8 million (midyear 2020 estimate). Census figures from 2011, the most recent, indicate 59.3 percent of the population in England and Wales is Christian. 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 in the 2011 census, and 7 percent chose not to answer. Jehovah’s Witnesses estimate there are 137,000 members in the country, and the Baha’i community estimates it has more than 7,000 members.
According to the 2019 British Social Attitudes survey, an annual survey conducted by the independent National Center for Social Research, 52 percent of those surveyed UK-wide described themselves as having no religion, 12 percent as Anglican, 7 percent as Catholic, and 9 percent as belonging to non-Christian religious groups. The survey showed 6 percent of individuals identified as Muslim, less than 0.5 percent as Jewish, and 3 percent as “other non-Christian.”
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 British and other 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.
A 2017 Scottish Social Attitudes Survey found 58 percent of those surveyed did not identify with any religion, 18 percent identified as part of the Church of Scotland, 10 percent as Roman Catholic, 11 percent as other Christian, and 2 percent as non-Christian.
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.
In his 2019 ‘Sectarianism in Northern Ireland’ report, Ulster University Professor Duncan Morrow found there is a “clear statistical trend towards a change in the religious minority-majority structure of Northern Ireland.” His research illustrates a consistent decline of Protestants in all 26 district council areas of Northern Ireland since 2001, contrasted with an increased Catholic population in 19 of 26 council areas in the same time period. Morrow’s analysis of 2011 census figures also illustrates this trend is likely to continue. Census figures show a Protestant majority in the over-60 age bracket and a Catholic majority in the under-20 age bracket. Professor Paul Nolan of Queen’s University Belfast stated based on current statistical trends, there will be a Catholic majority in Northern Ireland by 2021, when the next census will be conducted.
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.