English

The Census of Population, Households and Dwellings in the Republic of Croatia is the largest survey aimed at collecting basic data on the number and territorial distribution of population by demographic, economic, educational, migration and other characteristics as well as the characteristics of households and dwellings.

The 2021 Census of Population, Households and Dwellings will be carried out on the basis of the Act on the Census of Population, Households and Dwellings in the Republic of Croatia in 2021 (Official Gazette, Nos. 25/20 and 34/21). The Census shall be conducted to reflect the situation as of 31 August 2021 at midnight, which shall be deemed as the reference date of the Census.

The Census shall be conducted in two ways:

  1. persons shall be able to enumerate themselves independently by completing the electronic version of the Census Questionnaire that shall be made available via the e-Citizens electronic system, and at the same time provide data about their household and dwelling;
  2. enumerators shall use electronic devices to enumerate all the census units that have not been enumerated independently, and shall scrutinise the data collected by independent enumeration.

The National Identification and Authentication System (NIAS) shall be used to access the Census Questionnaire in the e-Citizens electronic system.

The Census shall be conducted in two phases: – from 13 September 2021 to 26 September 2021 by way of independent enumeration of the population via the e-Citizens electronic system; – from 27 September 2021 to 17 October 2021 enumerators shall enumerate all the census units that have not been enumerated independently, by interviewing the population with the aid of electronic devices, and they shall scrutinise the data collected during the first phase of the Census.

Self-enumeration

Self-enumeration period (CAWI phase)

Self-enumeration of the population via the e-Citizens (e-Građani) electronic system is carried out from 13 September 2021 to 26 September 2021.

How to enumerate yourself?

In the process of self-enumeration, citizens have the opportunity to fill out a digital questionnaire about their dwelling and household as well as all members of the household.
One reference person provides all the data for one household, that is, you as an e-respondent are expected to fill in the questionnaire with identification data as well as data on your dwelling and household and data on all members of the household. Subsequent changes and enumeration of additional household members after the questionnaire has been submitted and locked are not possible in the CAWI phase.

The CAWI Census questionnaire consists of the following:
• Identification data
• Data on households
• Data on dwellings
• Data on persons.

A successfully completed CAWI Census questionnaire for household contains correctly entered identification data, data on the household and dwelling as well as data for at least one person (refers to the person filling in the Questionnaire, in case he/she is the only member of the household).

The e-respondent may change the content in the CAWI questionnaire until it is locked and submitted.

How to access self-enumeration?

Go to the Census website https://Popis2021.hr and click on the self-enumeration link, which will redirect you to the e-Citizens system. The NIAS electronic service (National Identification and Authentication System) will request your authentication and access to your personal data. Upon clicking on the “I agree” icon, select your credential, log in, read the terms of service, confirm that you are an adult and start enumerating yourself.

What after completing the self-enumeration?

After successfully locking and submitting the Census questionnaire, the e-respondent can only see a unique code generated after submitting the Census questionnaire, which serves as proof of successful submission of the Census questionnaire and which the e-respondent will give to the enumerator during the field enumeration.

Data confidentiality

According to the Act on the Census of Population, Households and Dwellings in the Republic of Croatia in 2021 (NN, Nos 25/20 and 34/21), and the Official Statistics Act (NN, No 25/20), all data collected by 2021 Census are confidential and shall be used exclusively for statistical purposes.

Field enumeration

Field enumeration period (CAPI phase)

Field enumeration in the Census of Population, Households and Dwellings in the Republic of Croatia in 2021 will begin on 27 September 2021 and will last until 17 October 2021.

How will the field enumeration be carried out?

In the field enumeration phase, each enumerator will be in charge of certain enumeration areas. By visiting dwellings, the enumerator will enumerate persons, households and dwellings. One person can provide their own identification data, data on the dwelling and household as well as data on all members of the household, and if other members of the household are present at the time of enumeration, each person can provide the enumerator with their own data.

Taking over unique codes

In the field enumeration phase, enumerators will go to the enumeration areas, visit all the addresses and take over and record in the application unique codes from all citizens who have enumerated themselves in the e-Citizens system during the CAWI phase.
Unique codes can be handed to the enumerator in person when they come to your address or it can be printed out and left in a visible place so that the enumerator can take it over.

Data confidentiality

According to the Act on the Census of Population, Households and Dwellings in the Republic of Croatia in 2021 (NN, Nos 25/20 and 34/21) and the Official Statistics Act (NN, No 25/20), all data collected by 2021 Census are confidential and shall be used exclusively for statistical purposes.

Questions and answers

When will the Census of Population, Households and Dwellings 2021 (2021 Census) be carried out?

The 2021 Census will be carried out in two ways:
• 1) from 13 to 26 September 2021, persons can enumerate themselves using the census questionnaire in electronic form, which will be available via the e-Citizens electronic system, enumerating at the same time the household and the dwelling they live in
• 2) from 27 September to 17 October 2021, using electronic devices, enumerators will enumerate the census units that have not enumerated themselves and they will check the data collected by self-enumeration (take over the control code from the households that have enumerated themselves via the e-Citizens system)
Exceptionally, if it is established that not all census units have been enumerated by 17 October 2021, the enumeration period may be extended until 29 October 2021.

What is the reference date of the 2021 Census?

The reference date of the 2021 Census is 31 August 2021. During enumeration, answers are requested according to the situation as on 31 August 2021 at 24 o’clock. This very short time point is called the reference time of the Census. This moment is defined because of the changes that occur in census units.

What is the aim of the Census of Population, Households and Dwellings in the Republic of Croatia in 2021?

The aim of the 2021 Census is to collect data on the number and spatial distribution of the population and its basic demographic, educational, migration, economic and other characteristics, as well as the characteristics of households and dwellings.

Who participates in the Census?

Census participants are: enumerators, controllers, instructors, coordinators, deputy coordinators, members of county census committees and the Census Committee of the City of Zagreb, members of census committees of branch offices and heads of census centres. About 9 500 participants will be engaged to conduct the Census.

How to access a sample of the Census questionnaire in English/languages of national minorities?

There is a section ''Census questionnaire'' on the link, where it is possible to access a sample of the Census questionnaire in English or in languages of national minorities (a total of 21 languages of national minorities). Answers in the Census questionnaire should be provided in Croatian language and Latin script.

Will the data collected by the Census be used for some other purposes?

According to the Official Statistics Act (NN, No 25/20), all data collected by this survey are confidential and shall be used exclusively for statistical purposes.

Self-enumeration phase (CAWI phase)

How to access self-enumeration?

Go to the Census website https://Popis2021.hr and click on the self-enumeration link, which will redirect you to the e-Citizens system. The NIAS electronic service (National Identification and Authentication System) will request your authentication and access to your personal data. Upon clicking on the “I agree” icon, select your credential, log in, read the terms of service, confirm that you are an adult and start enumerating yourself.

Will there be user support?

Yes. During enumeration, the working hours of the information centre are from 8 a.m. to 9 p.m.

What after completing the Census questionnaire?

After successfully locking and submitting the Census questionnaire, the e-respondent will get a unique code generated after submitting the Census questionnaire, which serves as proof of successful submission of the Census questionnaire and which the e-respondent will give to the enumerator during the field enumeration. The unique code is necessary for the control of the scope of enumeration.

Is it possible to enter changes in the Census questionnaire in the self-enumeration phase?

If a person does not manage to fill in the Questionnaire at once, it is possible to save the entered data and continue filling in later. The unfinished Questionnaire can be accessed as long as the self-enumeration phase (CAWI phase) lasts. If a person has filled in and submitted the Questionnaire and the system has assigned them a unique code, it is not possible to make changes to the Questionnaire.

Can two households be enumerated with one credential?

No. The e-Citizens system automatically recognises the person who logged in to the system using a credential and sets it as the reference person. You can enumerate your parents by accessing the e-Citizens system and logging in with your mother's or father's credentials and enumerate them, their household and dwelling.

What if a person wants to change the data after filling in the Questionnaire and obtaining a unique code?

The review and change of the data provided is possible only for the person who was enumerated by someone else. If it is necessary to change the data for the person enumerated by someone else, you should wait for the enumerator in the field enumeration phase (CAPI phase).

Is every person from a household enumerated with their own credential?

No. One person from the household enumerates the dwelling, household and all persons in the dwelling via the e-Citizens system. The person from the household who accesses enumeration with their credential becomes the reference person and is obliged to enumerate all members of the household.

What if only one person from a household is enumerated and not the rest of the household?

In that case, those are incomplete data. One person from the household enumerates the dwelling, household and all persons in the dwelling via the e-Citizens system.

What if two persons in a household, using two different credentials, enumerate the same persons, household and dwelling?

The system will accept such entry and the duplication error will be corrected in the processing phase of the Census data.

What if the e-respondent forgets to enumerate one person?

When taking over the unique code, the e-respondent should explain to the enumerator that they forgot to enumerate one person, and the enumerator will fill in the Census questionnaire for that person at that moment.

What after completing the self-enumeration?

After successfully locking and submitting the Census questionnaire, the e-respondent can only see a unique code generated after submitting the census questionnaire, which serves as proof of successful submission of the census questionnaire and which the e-respondent will give to the enumerator during the field enumeration.

Field enumeration phase (CAPI phase)

What is the field enumeration phase (CAPI phase)

The field enumeration phase (CAPI phase) is the phase in which the enumerator comes to the addresses of the households which they are in charge of and enumerates the persons, household and dwelling at that address.

When will the field enumeration phase (CAPI phase) take place?

The CAPI phase of the Census of Population, Households and Dwellings in the Republic of Croatia in 2021 will be conducted from 27 September to 17 October 2021.

What if no one is at home when the enumerator arrives to the address?

If the enumerator does not find anyone at home, they will leave a written notice and arrange a new date for the enumeration.
If the household has enumerated itself and will be absent most of the time, the unique code can be written down on a paper and stick it on the door so that the enumerator can take it over. Furthermore, you can ask your neighbour who expects the enumerator to hand him your unique code.

Will the enumerator come to the address if the household has enumerated itself?

The enumerator will come to all addresses, including those of the households that have enumerated themselves, in order to take over the unique code from them.

Is the enumerator allowed to request identification documents?

The survey is based on a statement. The enumerator is not allowed to request identification documents from citizens.

Should the enumerator be allowed into the dwelling?

The person being enumerated is not obliged to let the enumerator into the dwelling. The enumerator should not insist on entering the dwelling, and in that case, the household can be enumerated in the hallway or in front of the house.

Below, you can access an example of the Census Questionnaire in English. The Census Questionnaire is an electronic form of a questionnaire that collects data on persons, households and dwellings. The Census Questionnaire shall be completed in the Croatian language and the Latin alphabet.

The Act on the Census of Population, Households and Dwellings in the Republic of Croatia in 2021
CENSUS QUESTIONNAIRE 2021
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