Irish people
The population of Ireland is about 6.3 million, but it is estimated that 50 to 80 million people around the world have Irish forebears, making the Irish diaspora one of the largest of any nation. Historically, emigration from Ireland has been the result of conflict, famine and economic issues. People of Irish descent are found mainly in English-speaking countries, especially Great Britain, the United States, Canada and Australia. There are also significant numbers in Argentina, Mexico and New Zealand. The United States has the most people of Irish descent, while in Australia those of Irish descent are a higher percentage of the population than in any other country outside Ireland. Many Icelanders have Irish and Scottish Gaelic forebears.
Catholic Church in Ireland
The Catholic Church in Ireland () is part of the worldwide Catholic Church in communion with the Holy See. With 3.7 million members, it is the largest Christian church in Ireland. In the Republic of Ireland's 2016 census, 78% of the population identified as Catholic, which represents a decrease of 6% from 2011. By contrast, 45% of Northern Ireland identified as Catholic at the 2011 census, a percentage that is expected to increase in the coming years. The Primate of All Ireland is the Archbishop of Armagh. The Church is administered on an all-Ireland basis. The Irish Catholic Bishops' Conference is a consultative body for ordinaries in Ireland.