A strong media campaign certainly contributed to this, as well as the fact that the award-winning e-Citizen portal is used by more and more residents. Most citizens who have self-enumerated live in the City of Zagreb (more than 403,000) followed by Split-Dalmatia County, and the least in Lika-Senj County, where less than nine thousand citizens completed the census survey questionnaire.

Due to system overload on Sunday night, the CBS decided to extend the deadline for self-enumeration to another day, so citizens still have the time to complete the survey comprised of 60 simple questions.

Census workers will start going door-to-door on Tuesday. They’ve also entered the 21^st century, so instead of paperwork, as has been the case so far, they are recording respondents’ answers in digital form because they will be equipped with laptops. During the on-site census, enumerators come to people’s homes and list persons, households, and dwellings, and for those who have self-enumerated, they note the control code as proof. Enumerators will have T-shirts and masks with the 2021 Census logo, accreditations, and laptops, as well as EU Digital COVID Certificates, so citizens will be able to easily identify them.