Religious landscape
The main Christian groups
The population of Ireland is overwhelmingly Christian (93%) in terms of religious affiliation. The Roman Catholic Church is by far the largest religious body with the declared religious (...)
Other Christian denominations
Other smaller Christian denominations include Orthodox, Pentecostalists, Quakers as well as the Jehovah’s Witnesses, and Mormons. With the strong immigration since the mid-1990s, notably from (...)
Non-Christian groups
Non-Christian religious believers have always been very few in the Republic of Ireland. Recent immigration has seen the declared Muslim population rise to 32,539, although this still represents (...)
The 2011 census
The most recent data on religious affiliation come from the 2011 census.
For more detail, see the table "Percentage and actual change population, sex, religion and statistic" of AIRO and the (...)