Ireland has the fastest growing population in the EU, according to the latest figures from the Central Statistics Office.
In the year to April 2007, the population grew by 2.5% to a total of 4.34 million people.
The CSO figures reveal that two thirds of the population increase of 106,100 was accounted for by migration, with the remaining one third from natural population increase.
The total number of immigrants in the year to April 2007 rose by 2,000 to 109,500.
However, the number of emigrants also rose to 42,200.
Net migration fell from 71,800 to 67,300.