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.
List of districts in Northern Ireland by religion or religion brought up in
These figures are presented here as an approximation of the community balance, without implying any particular significance to the absolute figures. Not all Protestants are unionists, and not all Catholics are nationalist. For information on recent communal conflicts in Northern Ireland, see the Troubles. The census reports do not distinguish between Protestant and other non-Catholic Christian faiths. The number of Orthodox Christians in Northern Ireland is estimated at about 3000 followers.