Economic disparity and discrimination are the real problems of Ireland(s); religious divisions are a front for deeper problems.
Roman Catholic is Ireland's most common religion. After that it is the Church of Ireland.
Catholic.Roman Catholicism is the predominant religion of Ireland.
Catholicism is the main religion in Connacht, which is a province that is found in the west of Ireland.
The "Church of Ireland" is a protestant church.
Christianity
Christianity is the dominant religion in Northern Ireland. Most people in Northern Ireland are members of a Protestant church, such as Presbyterians or Anglicans, who are members of the Church of Ireland.
Jewish
Catholicism.
The largest concentration is in Northern Ireland, although it is present throughout Ireland.
The main religion of Ireland is Catholicism. There are over three million Irish Catholics in the country. The second largest religion is the Church of Ireland.
The original religion for Ireland was catholic but when the British invaded some were converted to the protestant religion. But even now the catholic religion is still the most major in the country.
Ireland is mainly Catholic with Protestantism the 2nd biggest religion.