National census – things you should know

For how long will my data be processed? Who is responsible for completing the census of children? Is logging in with my National Id No. (PESEL) actually safe? These are just a few examples of the questions asked by many people on the occasion of the National Census of Population and Housing. Below we provide you with the answers.

Personal data

First of all, the collection of personal data for the Census is mandatory and compliant with GDPR, and Statistics Poland does not share such data. However, these data may be processed for even 100 years.

The online census

Logging in with your PESEL number and your mother’s maiden name is safe. The maiden-name requirement protects the system against attacks with the use of external databases or a PESEL number generators. When completing your census, you are required to provide data on other household members, especially children.

Foreigners and persons residing abroad

If you live permanently outside Poland and your registered residence address is no longer in Poland, the Census does not apply to you. However, the situation is different when you leave Poland e.g. for vacation. When leaving the country for vacation, you must provide your place of residence in Poland as of 31 March of the current year.

Foreigners, regardless of whether they live in Poland permanently or temporarily, should complete the Census by providing their place of residence in Poland as of March 31 of the current year. Notably, foreigners who do not have a PESEL number can tick the “foreigner without a PESEL number” option.

More information and frequently asked questions and answers can be found here.