That's according to the latest Census figures.
The latest Census figures show that there were over 5.1 million people in the State on Census night, which took place in April last year.
That is an 8% (387,274 people) increase on April 2016 figures.
County Kildare's population increased by 11%, while the county continued to be one of the counties with the youngest age on average, at 36.9.
Nationally, the population includes more females than males.
There are 2.6 million females living in the country compared to 2.5 million males.
Kfm Obituary Notices
Kildare County Council Appoints New Cathaoirleach And Leas-Chathaoirleach
200th Anniversary Of Death Of Local Poet Taking Place In Ballitore Tomorrow
"Stressed And Angry": Junior Infant Students In Naas School Without Teacher For New Academic Year
National Homelessness Figures Drop For First Time In Months, With Decrease Also Seen In Kildare
Court Hears How Celbridge Publican Was Blinded In One Eye After Attack
Maynooth University Set For Swimming Pool And Other Amenities As They Acquire Section Of South Campus
