It is simply because more people have moved to Ireland and more people are being born in Ireland.
The population of Scotland is around 5.3 million and the population of the Republic of Ireland is about 4.6 million.
Has who gone to Ireland?
The population of Church of Ireland is 365,000.
Intel Ireland's population is 4,500.
The population of Tesco Ireland is 2,008.
The population of Tesco Ireland is 13,500.
The population of Bank of Ireland is 15,868.
The Republic of Ireland has a population of about 4,470,700 residents.Northern Ireland has a population of about 1,775,000 residents._______________Update (2013/14): About 6.45 million in the whole island (4.6m in the Republic and 1.85m in Northern Ireland).The Republic of Ireland has a population of about 4,470,700 residents.Northern Ireland has a population of about 1,775,000 residents.
County Leitrim has the smallest population in Ireland.
New Ireland Province's population is 118,350.
Halifax - Ireland -'s population is 750.
Northern Ireland Electricity's population is 2,006.