About the census : Census Coverage Survey (CCS)

About the Census Coverage Survey

We try to make sure everyone is counted in the census. However, no census is perfect, and some people will be missed. We want to make sure the number missed is as small as possible, we carry out a survey to help us measure this.

The Census Coverage Survey (CCS) is a small survey undertaken shortly after the census which helps us to assess if any people have been missed. If your postcode is chosen in the sample then a NISRA survey interviewer will come to your door and ask you some questions.

Information the Census Coverage Survey collects

The CCS asks similar questions to those on the census questionnaire, just fewer of them. It is carried out after the completion of the main census field work in a sample of areas across Northern Ireland.

Information collected from the CCS is used to decide if adjustments are required to the census statistics. This is all to make sure the information produced is as accurate as possible for planning services such as health, education, housing and transport.

How to identify a Census Coverage Survey interviewer

Our interviewers will be wearing a NISRA identity card when they call at your address and they will introduce themselves to whoever answers the door.

They will fill in the questionnaire with you on your doorstep in a socially distanced way. If you’re not home when our interviewer calls, they will return at a different time to carry out the survey.

Find out more about the CCS on our help pages.