The latest statistics from the CSO show 2,212 babies were born in Donegal last year, the majority of them to married mothers between the ages of 30 and 34.
There were 508 babies born in Donegal in the fourth quarter of 2011, 6 more than during the same period in 2010.
280 of the babies born were male while 228 were female.
64% of babies were registered within marriage - 36 % outside marriage of the later 17% were born to parents living at the same address.
16 children were born to mothers under 20 while 26 were born to mothers over 40. The overwhelming majority of babies were born to mothers aged 30 to 39.
The CSO figures released today cover last year and are broadly in line with 2010.