The 2016 census was run as a no change census which meant that the questions on the 2016 census form were the same as those used in 2011 will the exception of the question on marital status. This had been amended to accommodate the category 'In a registered same-sex civil partnership'.
The main household census form catered for up to six persons present in the household on Census Night. There were 30 questions on the form which had to be answered in respect of each individual who was present in the household. In addition there were 11 household questions which the householder had to answer relating to the household’s accommodation. The household form also sought limited information about persons who were temporarily away from the household on census night.
A sample copy of the 2016 English language census Form can be found here (PDF 2,170KB)
A sample copy of the 2016 Irish language census Form can be found Foirm Dhaonáirimh 2016 (PDF 1,993KB)
Further information about individual questions on the census form can be found here.