Catholic Church in Ireland
In the 2016 Irish census 78.3% of the population identified as Catholic in Ireland; numbering approximately 3.7 million people. Unlike Catholics in the United States, Ireland has seen a significant decline from the 84.2% who identified as Catholic in the 2011 census.
Christianity in Ireland
The Presbyterian Church in Ireland, operating on an all-Ireland basis, is the largest Presbyterian denomination in Ireland, and the largest Protestant denomination in Northern Ireland. The motto is "Ardens sed Virens" – burning but flourishing. The Church has a membership of approximately 300,000 people in 550 congregations across Ireland. About 96% of the membership is in Northern Ireland. It is the second largest church in Northern Ireland, the first being the Catholic Church in the Republic of Ireland the church is the second largest Protestant denomination, after the Church of Ireland.