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.
Protestantism in the Republic of Ireland
In regards to immigration, of the 137,048 people from the three main Protestant denominations (Church of Ireland, Presbyterian, Methodist) to declare their country of birth, only 94,889 (69.2%) stated the Republic. 27,928 of these immigrants came from the United Kingdom, whilst 3,575 were born in the rest of Europe, 6,641 were from Africa, 1,341 from Asia, 1,730 from America, and 944 from elsewhere.