There were 18,844 births registered in the second quarter of 2009, a decrease of just over 1% in the number of births registered in the corresponding quarter of 2008.
The number of births registered in Q2 2009 remains high, the fourth highest number recorded in a quarter in recent years.
Births in the second quarter of 2009 represented an annual birth rate of 16.9 per 1,000 population.
The rate for the corresponding quarter of 2008 was 17.2 per 1,000 population and 14.6 per 1,000 population in Q2 of 2000.
In Q2 2009, Fingal recorded the highest birth rate of 22.1 per 1,000 population, while Co Monaghan recorded the lowest birth rate of 13.2 per 1,000 population.
Of the 18,844 births, there were 6,114 births registered as outside marriage. This accounted for 32.4% of all births.
Of these, 3,802 births were to unmarried parents with the same address, 20% of all births.