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.
Demographics of the Republic of Ireland
The Republic of Ireland is a predominantly Christian country. The majority are Roman Catholic, although parts of County Donegal in Ulster, especially East Donegal and Inishowen, have a significant Protestant minority. However, the number of people who declare themselves Catholic has been declining in recent years and the number of people who are practising Catholics is smaller than the declared number. As of the 2016 census, 78.3% were Catholic, a drop of 5.8% since 2011. Conversely, irreligion has almost doubled since 2011 with 9.8% declaring 'No Religion' in 2016, overtaking Protestantism as the second largest group in the state. The various Protestant and other Christian faiths represent 5.6%, Islam 1.3%, other religions 2.4% and 2.6% gave no answer.