The 2011 Census ( Crown copyright 2013)
Some interesting details from the individuals who responded to the religion questions on the census of 2011.
Scottish Census
Church of Scotland 1,717,871
Roman Catholic 841,053
Church of England 66,717
Baptists 26,224
Episcopalians 21,289
Methodist 10,979
Free Church of Scotland 10,896
Scottish Episcopal Church 8,048
Brethren 5,583
Salvation Army 4,100
Congregational 2,078
United Reformed Church 2,021
United Free church 1,514
Free Presbyterian 1,197
Churches of Christ 979
Church of the Nazarene 785
Apostolic 552
These are the figures for individuals marking on the census. There will be a difference from membership and attendance at the churches.
I know there has been a change since 2011, The Church of Scotland membership figures drop yearly.
I have removed some groups for convenience. ( Christadelphian, Full Gospel Assembly, Mennonite, Greek Catholic etc.)