Protestantism Church of Scotland (Presbyterian) . The British Parliament passed the Church of Scotland Act 1921, recognising the full independence of the church in matters spiritual, and as a result of this and passage of the Church of Scotland (Property and Endowments) Act, 1925, which settled the issue of patronage in the church, the Church of Scotland was able to unite with the
United Free Church of Scotland in 1929. The United Free Church of Scotland was itself the product of the union of the former
United Presbyterian Church of Scotland and the majority of the
Free Church of Scotland in 1900. In the second half of the 20th century and afterwards the Church was particularly affected by the general decline in church attendance. Between 1966 and 2006 numbers of communicants in the Church of Scotland dropped from over 1,230,000 to 504,000. Formal membership reduced from 446,000 in 2010 to 398,389 or 7.5% of the total population by year end 2013, dropping to 325,695 by year end 2018 and representing about 6% of the Scottish population. By 2020, membership had fallen further to 297,345 or 5% of the total population. As at December 2021 there were 283,600 members of the Church of Scotland, a fall of 4.6% from 2020. In the ten years period (2011–2021) the number of members has fallen by 34%. As at December 2022, there were 270,300 members of the Church of Scotland. As at December 2023, there were 259,200 members of the Church of Scotland, a fall of 4.1% from 2022. In the last ten years, since 2013, the number of members has fallen by 35%. In 2016, the actual weekly attendance at a Kirk service was estimated to be 136,910. In the twenty-first century the Church has faced financial issues, with a £5.7 million deficit in 2010. In response the church adopted a "prune to grow" policy, cutting 100 posts and introducing job-shares and unpaid ordained staff. In the 2022 national census, 20.4% of Scots identified their religion as "Church of Scotland", which aligns with a 2019 Scottish Household Survey with showed 20% of Scots self-reported themselves as adherents. By 2023, the Church estimated that around 60,000 people worshipped in church on a Sunday, a drop from 88,000 before the
COVID-19 pandemic.
Other Presbyterian denominations After the reunification of the Church of Scotland and the United Free Church, some independent Scottish Presbyterian denominations still remained. These included the
Free Church of Scotland (formed of those congregations which refused to unite with the United Presbyterian Church in 1900), the
United Free Church of Scotland (formed of congregations which refused to unite with the Church of Scotland in 1929), the
Reformed Presbyterian Church of Scotland, the
Free Presbyterian Church of Scotland (which broke from the Free Church of Scotland in 1893), the
Associated Presbyterian Churches (which emerged as a result of a split in the Free Presbyterian Church of Scotland in the 1980s), and the
Free Church of Scotland (Continuing) (which emerged from a split in the Free Church of Scotland in 2000). In addition, there are two congregations belonging to the
Free Presbyterian Church of Ulster located in Scotland. Similarly, five former Church of Scotland congregations have partnered together within the
Didasko Presbytery (Cornerstone Community Church, Stirling; Edinburgh North Church; Gilcomston Church, Aberdeen; Grace Church, Dundee; and The Tron Church, Glasgow). Thus, there are 10 Presbyterian denominations represented within Scotland. At the 2011 census, 3,553 people responded as
Other Christian – Presbyterian (i.e. not Church of Scotland), 1,197 as
Other Christian – Free Presbyterian, 313 as
Other Christian – Evangelical Presbyterian Church, and as few as 12 people as
Other Christian – Scottish Presbyterianism. At the 2022 census, 3,567 people responded as
Other Christian – Presbyterian, 469 as
Other Christian – Free Presbyterian, 847 as
Other Christian – Evangelical Presbyterian Church, and 99 people as
Other Christian – Reformed Presbyterian. Those identifying with a particular Presbyterian denomination other than the Church of Scotland were: According to the 2016 Church Census, Free Church attendance was around 10,000 per week and amounted to 7% of all Presbyterian church attendance in Scotland. By 2025, it had grown to 114 congregations. A significant proportion of Free Church activity is to be found in the
Highlands and Islands; however, a growing percentage of the Free Church of Scotland's congregations and membership is now within the cities and larger towns of Scotland, largely as a result of recent church plants.
Scottish Episcopal Church The Scottish Episcopal Church is the member church of the
Anglican Communion in Scotland. It is made up of seven dioceses, each with its own bishop. It dates from the
Glorious Revolution in 1689 when the national church was defined as presbyterian instead of episcopal in government. The bishops and those that followed them became the Scottish Episcopal Church. Scotland's third largest church, the Scottish Episcopal Church has 303 local congregations. In terms of official membership, Episcopalians nowadays constitute well under 1 per cent of the population of Scotland, making them considerably smaller than the Church of Scotland that represents nearly 5 per cent of the Scottish population. The all-age membership of the church in 2022 was 23,503 of whom 16,605 were communicant members. Weekly attendance was 8,815. The all-age membership of the church in 2018 was 28,647, of whom 19,983 were communicant members. Weekly attendance was 12,430. For 2013, the Scottish Episcopal Church reported its numbers as 34,119 members (all ages). The 2022 census recorded 15,735 people identifying with it (along with many others identifying as other Anglican denominations, including 45,063 as Church of England; 5,600 as Episcopalian; 4,161 as Anglican; 1,374 as Church of Ireland; and 426 as Church in Wales).
Other Protestant denominations Other Protestant denominations which entered Scotland, usually from England, before the 20th century included the
Quakers,
Baptists,
Methodists and
Brethren. By 1907 the
Open Brethren had 196 meetings and by 1960 it was 350, with perhaps 25,000 people. The smaller
Exclusive Brethren had perhaps another 3,000. Both were geographically and socially diverse, but particularly recruited in fishing communities in the Islands and East. In the 2011 census 5,583 identified themselves as Brethren, 10,979 as Methodist, 1,339 as Quaker, 26,224 as Baptist, and 13,229 as Evangelical. In the 2022 census, there were recorded a growth in those identifying within the Pentecostal movement, with 18,954 Pentecostals, 2,048 Charismatics, 857 from the Apostolic Church, 850 Church of the Nazarene, and 35 from the Full Gospel Assembly.
Catholicism During much of the 20th century and beyond, significant numbers of Catholics emigrated to Scotland from Italy,
Lithuania, and
Poland. According to the catholic Bishops' Conference of Scotland, there were 676,000 Catholics in 2023. However, the church has been affected by the general decline in churchgoing. Between 1994 and 2002 Catholic attendance in Scotland declined 19%, to just over 200,000. By 2008, the Bishops' Conference of Scotland estimated that 184,283 attended mass regularly in that year: 3.6% of Scotland's population. According to the
2011 census, Catholics comprise 15.9% of the overall population. In 2011, Catholics outnumbered adherents of the Church of Scotland in just four of the council areas, including North Lanarkshire, Inverclyde, West Dunbartonshire, and the most populous council, Glasgow City. According to the 2019 Scottish Household Survey, 13% of the adult Scottish population identified with Catholicism. The statistical returns in the Catholic Directory for Scotland 2025 stated that the average weekly Mass attendance in November 2023 was 95,029. Subsequently, there were several other cases of alleged sexual misconduct involving other priests. O'Brien was replaced as Archbishop of St Andrews and Edinburgh by
Leo Cushley.
Orthodoxy The various branches of
Orthodox Christianity (including Russian, Greek, and Coptic) had around 8,900 respondents at the 2011 census. ==Islam==