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.
Gaeltacht
At the time of the 2006 census of the Republic of Ireland, the population of the Gaeltacht was 91,862, approximately 2.1% of the state's 4,239,848 people, with major concentrations of Irish speakers located in the western counties of Donegal, Mayo, Galway, and Kerry. There were smaller concentrations in the counties of Cork and Waterford in the south and Meath in the east. The most recent census of 2016 however shows that the population of the Gaeltacht was 96,090. This shows a rise of 4.5% from 2006.
The Gaeltacht districts have historically suffered from mass migration. Being at the edge of the island they always had fewer railways and roads, and poorer land to farm. Other influences have been the arrival of non-Irish speaking families, the marginal role of the Irish language in the education system and general pressure from the English-speaking community. There is no evidence that periods of relative prosperity have materially improved the situation of the language.