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.
Quiet Revolution (Republic of Ireland)
The laws governing the Republic of Ireland, as well as Ireland's socio-cultural principles, had until the late 20th century been heavily influenced and dictated by the Roman Catholic Church. Long before and throughout pre-modern and modern history, the majority of Irish citizens were devout Catholics.