Pictured at the launch of Census 2016 (l-r) were Dorothea Findlater, Blackrock, who is 106 years' old and has been counted in 18 censuses and Teresa Moran, Raheny, who is age 100 and has been counted in 17 censuses.

Ten facts about Census 2016

The Central Statistics Office today (Wednesday) officially launched Census 2016.

The census will take place on Sunday, 24 April, and everybody who spends that night in Ireland must be included on a census form.

Taoiseach Enda Kenny commented: 'The results of the census are an important resource which are available to all. Census 2016 will take place exactly 100 years to the day that the Easter Rising began, and the results of this Census will be of great interest to the historians of the future as they look back and reflect on life in Ireland in 2016.”

The Central Statistics Office issued these ten facts about the upcoming census:

1) The census will take place on the night of Sunday 24th April 2016.

2) The last census was held on Sunday 10th April 2011.

3) Census 2011 told us that the population of Ireland on that night was 4,588,252 persons.

4) Census 2016 will be the 27th census taken in Ireland.

5) More than 2.3 million census forms have been printed by the Central Statistics Office.

6) There are 11 household and 30 individual questions on the census form.

7) 4,663 enumerators have been recruited to deliver and collect the census forms.

8) The census forms will be delivered between 21st March and 24th April.

9) For census purposes, the country is divided into 44 designated ‘regions’ each comprising 10 ‘field districts’.

10) The first results from Census 2016 will be published about 12 weeks after census night.