Microdata products enable researchers to look at combinations of characteristics that are not generally available from the standard census tables, and to perform different types of analyses not possible from standard tabulations.
Microdata are small samples of data for whole households and individuals, which include some associated census characteristics but no information that could identify a household or individual.
Related statistics
Microdata teaching file
This file contains anonymised records on a limited set of variables for a random sample of 1 per cent of people in the 2011 Census output database for Northern Ireland.
Secure microdata
The secure microdata files consist of random samples of 10 per cent of people or households in the 2011 Census output database for Northern Ireland.
Safeguarded microdata
The safeguarded microdata files consist of random samples of up to 5 per cent of individuals in the 2011 Census output database for Northern Ireland.